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  <attribute name="Conventions" value="CF-1.8, ACDD-1.3" />
  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="VOC (volatile organic compounds) at Beromünster" />
  <attribute name="summary" value="VOC (volatile organic compounds) at Beromünster. These measurements are gathered as a part of the following projects ACTRIS, EMEP, GAW-WDCRG and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ['2-methylbutane in air (mass_concentration_of_2-methylbutane_in_air)', '2-methylbutane in air (mole_fraction_of_2_methylbutane_in_air)', '2-methylpropane in air (mass_concentration_of_2-methylpropane_in_air)', '2-methylpropane in air (mole_fraction_of_2_methylpropane_in_air)', 'benzene in air (mole_fraction_of_benzene_in_air)', 'ethanal in air (mole_fraction_of_ethanal_in_air)', 'ethanal in air (mass_concentration_of_ethanal_in_air)', 'ethane in air (mass_concentration_of_ethane_in_air)', 'ethane in air (mole_fraction_of_ethane_in_air)', 'ethanol in air (mole_fraction_of_ethanol_in_air)', 'ethanol in air (mass_concentration_of_ethanol_in_air)', 'ethene in air (mole_fraction_of_ethene_in_air)', 'ethylbenzene in air (mole_fraction_of_ethylbenzene_in_air)', 'ethyne in air (mole_fraction_of_ethyne_in_air)', 'isohexanes in air', 'isoprene in air (mass_concentration_of_isoprene_in_air)', 'isoprene in air (mole_fraction_of_isoprene_in_air)', 'm-p-xylene in air (mole_fraction_of_m-p-xylene_in_air)', 'm-p-xylene in air (mole_fraction_of_m_p_xylene_in_air)', 'methanol in air (mole_fraction_of_methanol_in_air)', 'n-butane in air (mass_concentration_of_n-butane_in_air)', 'n-butane in air (mole_fraction_of_butane_in_air)', 'n-heptane in air (mass_concentration_of_n-heptane_in_air)', 'n-heptane in air (mole_fraction_of_heptane_in_air)', 'n-hexane in air (mass_concentration_of_n-hexane_in_air)', 'n-hexane in air (mole_fraction_of_hexane_in_air)', 'n-pentane in air (mass_concentration_of_n-pentane_in_air)', 'n-pentane in air (mole_fraction_of_pentane_in_air)', 'n-propanol in air (mole_fraction_of_n-propanol_in_air)', 'n-propanol in air (mass_concentration_of_propanol_in_air)', 'o-xylene in air (mole_fraction_of_o-xylene_in_air)', 'o-xylene in air (mole_fraction_of_o_xylene_in_air)', 'propane in air (mass_concentration_of_propane_in_air)', 'propane in air (mole_fraction_of_propane_in_air)', 'propanone in air (mole_fraction_of_propanone_in_air)', 'propanone in air (mass_concentration_of_propanone_in_air)', 'propene in air (mole_fraction_of_propene_in_air)', 'toluene in air (mole_fraction_of_toluene_in_air)']" />
  <attribute name="keywords" value="Beromünster CH0053R 2-methylbutane 2-methylpropane benzene ethanal ethane ethanol ethene ethylbenzene ethyne isohexanes isoprene m-p-xylene methanol n-butane n-heptane n-hexane n-pentane n-propanol o-xylene propane propanone propene toluene air ACTRIS EMEP GAW-WDCRG mass_concentration_of_2-methylbutane_in_air mole_fraction_of_2_methylbutane_in_air mass_concentration_of_2-methylpropane_in_air mole_fraction_of_2_methylpropane_in_air mole_fraction_of_benzene_in_air mole_fraction_of_ethanal_in_air mass_concentration_of_ethanal_in_air mass_concentration_of_ethane_in_air mole_fraction_of_ethane_in_air mole_fraction_of_ethanol_in_air mass_concentration_of_ethanol_in_air mole_fraction_of_ethene_in_air mole_fraction_of_ethylbenzene_in_air mole_fraction_of_ethyne_in_air mass_concentration_of_isoprene_in_air mole_fraction_of_isoprene_in_air mole_fraction_of_m-p-xylene_in_air mole_fraction_of_m_p_xylene_in_air mole_fraction_of_methanol_in_air mass_concentration_of_n-butane_in_air mole_fraction_of_butane_in_air mass_concentration_of_n-heptane_in_air mole_fraction_of_heptane_in_air mass_concentration_of_n-hexane_in_air mole_fraction_of_hexane_in_air mass_concentration_of_n-pentane_in_air mole_fraction_of_pentane_in_air mole_fraction_of_n-propanol_in_air mass_concentration_of_propanol_in_air mole_fraction_of_o-xylene_in_air mole_fraction_of_o_xylene_in_air mass_concentration_of_propane_in_air mole_fraction_of_propane_in_air mole_fraction_of_propanone_in_air mass_concentration_of_propanone_in_air mole_fraction_of_propene_in_air mole_fraction_of_toluene_in_air" />
  <attribute name="id" value="VG2Y-C2S4.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="ACTRIS, EMEP, GAW-WDCRG" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/VG2Y-C2S4" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Rubli, P., Reimann, S., ACTRIS, EMEP, GAW-WDCRG, 2026, VOC (volatile organic compounds) at Beromünster, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/VG2Y-C2S4" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="CH01L &quot;Swiss Federal Laboratories for Materials Science and Technology&quot; EMPA &quot;Section Air Pollution&quot; &quot;Überlandstrasse 133&quot; 8600 Dübendorf Switzerland" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2026-04-08T07:34:17.997852Z" />
  <attribute name="date_metadata_modified" value="2026-03-12T16:17:44Z" />
  <attribute name="creator_name" value="Pascal Rubli, Stefan Reimann" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="pascal.rubli@empa.ch, " />
  <attribute name="creator_institution" value="&quot;Swiss Federal Laboratories for Materials Science and Technology, Air Pollution/Environmental Technology, Empa&quot;, " />
  <attribute name="contributor_name" value="Pascal Rubli" />
  <attribute name="contributor_role" value="data submitter" />
  <attribute name="publisher_type" value="institution" />
  <attribute name="publisher_name" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_institution" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_email" value="ebas@nilu.no" />
  <attribute name="publisher_url" value="https://www.nilu.no/" />
  <attribute name="geospatial_bounds" value="POINT Z EMPTY" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="time_coverage_start" value="2025-02-21T09:04:00Z" />
  <attribute name="time_coverage_end" value="2025-12-20T01:03:00Z" />
  <attribute name="time_coverage_duration" value="P0000-09-28T15:59:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-00T01:00:00" />
  <attribute name="timezone" value="UTC" />
  <attribute name="ebas_data_definition" value="EBAS_1.1" />
  <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="ebas_citation" value="Rubli, P., Reimann, S., ACTRIS, EMEP, GAW-WDCRG, 2026, VOC (volatile organic compounds) at Beromünster, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/VG2Y-C2S4" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="VG2Y-C2S4.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/VG2Y-C2S4" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/VG2Y-C2S4" />
  <attribute name="ebas_file_creation" value="2026-04-28T01:37:17.101477Z" />
  <attribute name="ebas_export_state" value="2026-04-08T07:34:17.997852Z" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="2025-02-21T09:04:00.000000Z" />
  <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="43w" />
  <attribute name="ebas_resolution_code" value="1h" />
  <attribute name="ebas_station_code" value="CH0053R" />
  <attribute name="ebas_platform_code" value="CH0053S" />
  <attribute name="ebas_station_name" value="Beromünster" />
  <attribute name="ebas_station_wdca_id" value="GAWACH__BRM" />
  <attribute name="ebas_station_gaw_id" value="BRM" />
  <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
  <attribute name="ebas_station_land_use" value="Agricultural" />
  <attribute name="ebas_station_setting" value="Rural" />
  <attribute name="ebas_station_gaw_type" value="R" />
  <attribute name="ebas_station_wmo_region" type="long" value="7" />
  <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
  <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
  <attribute name="ebas_station_altitude" value="797.0 m" />
  <attribute name="ebas_measurement_altitude" value="802.0 m" />
  <attribute name="ebas_measurement_height" value="5.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_matrix" value="air" />
  <attribute name="ebas_laboratory_code" value="CH01L" />
  <attribute name="ebas_instrument_type" value="online_gc" />
  <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
  <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
  <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
  <attribute name="ebas_instrument_serial_number" value="cn17373012" />
  <attribute name="ebas_method_ref" value="CH01L_MARES_GC_FID_VOCAIR_BRM" />
  <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
  <attribute name="ebas_calibration_standard_id" value="D217055" />
  <attribute name="ebas_secondary_standard_id" value="Duebendorf air; RIX-filling; D2641594" />
  <attribute name="ebas_inlet_type" value="Hat or hood" />
  <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
  <attribute name="ebas_detection_limit_expl" value="Determined by integration of a baseline signal multiplied by a factor of 3" />
  <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) + systematic errors (accuracy)" />
  <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
  <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
  <attribute name="ebas_organization" value="CH01L, Swiss Federal Laboratories for Materials Science and Technology, EMPA, Section Air Pollution, Überlandstrasse 133, , 8600, Dübendorf, Switzerland" />
  <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
  <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
  <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
  <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
  <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
  <attribute name="ebas_originator" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;, &quot;Reimann, Stefan, , , , , , , , , &quot;" />
  <attribute name="ebas_submitter" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;" />
  <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
  <attribute name="_NCProperties" value="version=2,netcdf=4.9.3,hdf5=1.14.6" />
  <attribute name="Metadata_Conventions" value="Unidata Dataset Discovery v1.0" />
  <attribute name="geospatial_lat_units" value="degrees_north" />
  <attribute name="geospatial_lon_units" value="degrees_east" />
  <attribute name="standard_name_vocabulary" value="CF-1.7, ACDD-1.3" />
  <attribute name="history" value="None" />
  <attribute name="creator_url" value="ebas.nilu.no" />
  <attribute name="_CoordSysBuilder" value="ucar.nc2.internal.dataset.conv.CF1Convention" />
  <dimension name="time" length="5825" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="1" />
  <dimension name="qc_2_methylbutane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_2_methylbutane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_2_methylbutane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_2_methylbutane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_2_methylbutane_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_2_methylbutane_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_2_methylpropane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_2_methylpropane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_2_methylpropane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_2_methylpropane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_2_methylpropane_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_2_methylpropane_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_benzene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_benzene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_benzene_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_benzene_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_benzene_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_benzene_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_ethanal_nmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_ethanal_ug_per_m3_amean_flags" length="1" />
  <dimension name="qc_ethanal_nmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethanal_ug_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethanal_nmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_ethanal_ug_per_m3_precision_flags" length="1" />
  <dimension name="qc_ethane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_ethane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_ethane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethane_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_ethane_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_ethanol_nmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_ethanol_ug_per_m3_amean_flags" length="1" />
  <dimension name="qc_ethanol_nmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethanol_ug_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethanol_nmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_ethanol_ug_per_m3_precision_flags" length="1" />
  <dimension name="qc_ethene_amean_flags" length="1" />
  <dimension name="qc_ethene_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethene_precision_flags" length="1" />
  <dimension name="qc_ethylbenzene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_ethylbenzene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_ethylbenzene_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethylbenzene_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethylbenzene_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_ethylbenzene_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_ethyne_amean_flags" length="1" />
  <dimension name="qc_ethyne_ExpUnc2s_flags" length="1" />
  <dimension name="qc_ethyne_precision_flags" length="1" />
  <dimension name="qc_isohexanes_amean_flags" length="1" />
  <dimension name="qc_isohexanes_ExpUnc2s_flags" length="1" />
  <dimension name="qc_isohexanes_precision_flags" length="1" />
  <dimension name="qc_isoprene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_isoprene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_isoprene_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_isoprene_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_isoprene_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_isoprene_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_m_p_xylene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_m_p_xylene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_m_p_xylene_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_m_p_xylene_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_m_p_xylene_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_m_p_xylene_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_methanol_amean_flags" length="1" />
  <dimension name="qc_methanol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_methanol_precision_flags" length="1" />
  <dimension name="qc_n_butane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_n_butane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_n_butane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_butane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_butane_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_n_butane_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_n_heptane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_n_heptane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_n_heptane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_heptane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_heptane_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_n_heptane_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_n_hexane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_n_hexane_pmol_per_mol_amean_flags" length="1" />
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  <dimension name="qc_n_hexane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_hexane_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_n_hexane_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_n_pentane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_n_pentane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_n_pentane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_pentane_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_pentane_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_n_pentane_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_n_propanol_nmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_n_propanol_ug_per_m3_amean_flags" length="1" />
  <dimension name="qc_n_propanol_nmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_propanol_ug_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_n_propanol_nmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_n_propanol_ug_per_m3_precision_flags" length="1" />
  <dimension name="qc_o_xylene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_o_xylene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_o_xylene_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_o_xylene_pmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_o_xylene_ng_per_m3_precision_flags" length="1" />
  <dimension name="qc_o_xylene_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_propane_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_propane_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_propane_ng_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_propane_pmol_per_mol_ExpUnc2s_flags" length="1" />
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  <dimension name="qc_propane_pmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_propanone_nmol_per_mol_amean_flags" length="1" />
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  <dimension name="qc_propanone_nmol_per_mol_ExpUnc2s_flags" length="1" />
  <dimension name="qc_propanone_ug_per_m3_ExpUnc2s_flags" length="1" />
  <dimension name="qc_propanone_nmol_per_mol_precision_flags" length="1" />
  <dimension name="qc_propanone_ug_per_m3_precision_flags" length="1" />
  <dimension name="qc_propene_amean_flags" length="1" />
  <dimension name="qc_propene_ExpUnc2s_flags" length="1" />
  <dimension name="qc_propene_precision_flags" length="1" />
  <dimension name="qc_toluene_ng_per_m3_amean_flags" length="1" />
  <dimension name="qc_toluene_pmol_per_mol_amean_flags" length="1" />
  <dimension name="qc_toluene_ng_per_m3_ExpUnc2s_flags" length="1" />
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  <dimension name="qc_toluene_pmol_per_mol_precision_flags" length="1" />
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    <attribute name="time_coverage_start" value="2025-02-21T09:14:00Z" />
    <attribute name="time_coverage_end" value="2025-12-20T00:53:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="4475.0" />
    <attribute name="time_coverage_duration" value="P0Y0M301DT15H39M0.000S" />
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  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-05-18" />
    <attribute name="nciso_version" value="2.4.8" />
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  <variable name="time_bnds" shape="time tbnds" type="double">
    <attribute name="long_name" value="time bounds for measurement" />
  </variable>
  <variable name="metadata_time_bnds" shape="metadata_time tbnds" type="double">
    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
  </variable>
  <variable name="v_2_methylbutane_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_2-methylbutane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_2_methylbutane_ng_per_m3_amean_qc v_2_methylbutane_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
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    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
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    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
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    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0  -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.22. Detection limit converted from '3.0 pmol/mol' to '10.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.22." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/2-methylbutanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="2-methylbutane mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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  <variable name="qc_2_methylbutane_ng_per_m3_amean" shape="qc_2_methylbutane_ng_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
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  <variable name="meta_2_methylbutane_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_2_methylbutane_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_2_methylbutane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
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    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0 " />
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    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_2_methylbutane_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="v_2_methylbutane_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="ancillary_variables" value="v_2_methylbutane_ng_per_m3_ExpUnc2s_qc v_2_methylbutane_ng_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
    <attribute name="ebas_station_altitude" value="797.0 m" />
    <attribute name="ebas_measurement_altitude" value="802.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="2-methylpropane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
    <attribute name="ebas_method_ref" value="CH01L_MARES_GC_FID_VOCAIR_BRM" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_standard_id" value="D217055" />
    <attribute name="ebas_secondary_standard_id" value="Duebendorf air; RIX-filling; D2641594" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
    <attribute name="ebas_detection_limit_expl" value="Determined by integration of a baseline signal multiplied by a factor of 3" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) + systematic errors (accuracy)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CH01L, Swiss Federal Laboratories for Materials Science and Technology, EMPA, Section Air Pollution, Überlandstrasse 133, , 8600, Dübendorf, Switzerland" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;, &quot;Reimann, Stefan, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0 " />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/2-methyl-propaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="2-methyl-propane amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_2_methylpropane_pmol_per_mol_precision" shape="qc_2_methylpropane_pmol_per_mol_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_2_methylpropane_pmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_benzene_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_benzene_ng_per_m3_amean_qc v_benzene_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
    <attribute name="ebas_station_wdca_id" value="GAWACH__BRM" />
    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
    <attribute name="ebas_station_altitude" value="797.0 m" />
    <attribute name="ebas_measurement_altitude" value="802.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
    <attribute name="ebas_method_ref" value="CH01L_MARES_GC_FID_VOCAIR_BRM" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_standard_id" value="D217055" />
    <attribute name="ebas_secondary_standard_id" value="Duebendorf air; RIX-filling; D2641594" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_detection_limit_expl" value="Determined by integration of a baseline signal multiplied by a factor of 3" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CH01L, Swiss Federal Laboratories for Materials Science and Technology, EMPA, Section Air Pollution, Überlandstrasse 133, , 8600, Dübendorf, Switzerland" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;, &quot;Reimann, Stefan, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0  -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.49. Detection limit converted from '3.0 pmol/mol' to '10.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.49." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/benzenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="benzene mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_benzene_ng_per_m3_amean" shape="qc_benzene_ng_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_benzene_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_benzene_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_benzene_pmol_per_mol_amean_qc v_benzene_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
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    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
    <attribute name="ebas_station_altitude" value="797.0 m" />
    <attribute name="ebas_measurement_altitude" value="802.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="benzene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
    <attribute name="ebas_method_ref" value="CH01L_MARES_GC_FID_VOCAIR_BRM" />
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    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
    <attribute name="ebas_detection_limit" value="3.0 pmol/mol" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CH01L, Swiss Federal Laboratories for Materials Science and Technology, EMPA, Section Air Pollution, Überlandstrasse 133, , 8600, Dübendorf, Switzerland" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;, &quot;Reimann, Stefan, , , , , , , , , &quot;" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0 " />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/benzeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="benzene amount fraction" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_benzene_pmol_per_mol_amean" shape="qc_benzene_pmol_per_mol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_benzene_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_benzene_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_benzene_ng_per_m3_ExpUnc2s_qc v_benzene_ng_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
    <attribute name="ebas_station_wdca_id" value="GAWACH__BRM" />
    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
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    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
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    <attribute name="ebas_component" value="benzene" />
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    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0  -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.485." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/benzenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="benzene mass concentration" />
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  <variable name="qc_benzene_ng_per_m3_ExpUnc2s" shape="qc_benzene_ng_per_m3_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_benzene_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_benzene_pmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
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    <attribute name="units" value="pmol/mol" />
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    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
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    <attribute name="units" value="1" />
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  <variable name="meta_benzene_pmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/benzenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="benzene mass concentration" />
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  <variable name="qc_benzene_ng_per_m3_precision" shape="qc_benzene_ng_per_m3_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
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  <variable name="meta_benzene_ng_per_m3_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_benzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
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    <attribute name="cell_methods" value="time: precision" />
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    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0 " />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/benzeneamountfraction" />
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    <attribute name="units" value="1" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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  <variable name="meta_benzene_pmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
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  <variable name="meta_ethanal_nmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ethanal_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
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    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0  -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.0019654. Detection limit converted from '3.0 pmol/mol' to '0.0059 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.0019654." />
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    <attribute name="actris_variable_preferred_term" value="acetaldehyde mass concentration" />
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    <attribute name="cell_methods" value="time: precision" />
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    <attribute name="ebas_submitter" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0  -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 1.342." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="ethane mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
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  </variable>
  <variable name="qc_ethane_ng_per_m3_precision" shape="qc_ethane_ng_per_m3_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethane_ng_per_m3_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethane_pmol_per_mol_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_ethane_pmol_per_mol_precision_qc v_ethane_pmol_per_mol_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
    <attribute name="ebas_station_wdca_id" value="GAWACH__BRM" />
    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
    <attribute name="ebas_station_altitude" value="797.0 m" />
    <attribute name="ebas_measurement_altitude" value="802.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
    <attribute name="ebas_method_ref" value="CH01L_MARES_GC_FID_VOCAIR_BRM" />
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    <attribute name="ebas_secondary_standard_id" value="Duebendorf air; RIX-filling; D2641594" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0 " />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethane amount fraction" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_temporal_resolution" value="PT1H" />
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  <variable name="qc_ethane_pmol_per_mol_precision" shape="qc_ethane_pmol_per_mol_precision_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethane_pmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethanol_nmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethanol_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="v_ethanol_nmol_per_mol_amean_qc v_ethanol_nmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
    <attribute name="ebas_station_wdca_id" value="GAWACH__BRM" />
    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
    <attribute name="ebas_station_altitude" value="797.0 m" />
    <attribute name="ebas_measurement_altitude" value="802.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethanol" />
    <attribute name="ebas_unit" value="nmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
    <attribute name="ebas_method_ref" value="CH01L_MARES_GC_FID_VOCAIR_BRM" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_standard_id" value="D217055" />
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    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
    <attribute name="ebas_detection_limit" value="0.003 nmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Determined by integration of a baseline signal multiplied by a factor of 3" />
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    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CH01L, Swiss Federal Laboratories for Materials Science and Technology, EMPA, Section Air Pollution, Überlandstrasse 133, , 8600, Dübendorf, Switzerland" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
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    <attribute name="ebas_originator" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;, &quot;Reimann, Stefan, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0  -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.0020554. Detection limit converted from '3.0 pmol/mol' to '0.00617 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.0020554. -- Data converted on export from EBAS from 'ug/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.4865262. Detection limit converted from '0.00617 ug/m3' at 273.15 K, 1013.25 hPa to '0.003 nmol/mol', conversion factor 0.4865262." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethanolamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethanol amount fraction" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
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  <variable name="qc_ethanol_nmol_per_mol_amean" shape="qc_ethanol_nmol_per_mol_amean_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethanol_nmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethanol_ug_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ethanol_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="v_ethanol_ug_per_m3_amean_qc v_ethanol_ug_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
    <attribute name="ebas_station_wdca_id" value="GAWACH__BRM" />
    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
    <attribute name="ebas_station_altitude" value="797.0 m" />
    <attribute name="ebas_measurement_altitude" value="802.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethanol" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
    <attribute name="ebas_method_ref" value="CH01L_MARES_GC_FID_VOCAIR_BRM" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_standard_id" value="D217055" />
    <attribute name="ebas_secondary_standard_id" value="Duebendorf air; RIX-filling; D2641594" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="0.00617 ug/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by integration of a baseline signal multiplied by a factor of 3" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) + systematic errors (accuracy)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CH01L, Swiss Federal Laboratories for Materials Science and Technology, EMPA, Section Air Pollution, Überlandstrasse 133, , 8600, Dübendorf, Switzerland" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;, &quot;Reimann, Stefan, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0  -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.0020554. Detection limit converted from '3.0 pmol/mol' to '0.00617 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.0020554." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethanolmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="ethanol mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ethanol_ug_per_m3_amean" shape="qc_ethanol_ug_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethanol_ug_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethanol_nmol_per_mol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethanol_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="v_ethanol_nmol_per_mol_ExpUnc2s_qc v_ethanol_nmol_per_mol_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
    <attribute name="ebas_station_wdca_id" value="GAWACH__BRM" />
    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
    <attribute name="ebas_station_altitude" value="797.0 m" />
    <attribute name="ebas_measurement_altitude" value="802.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethanol" />
    <attribute name="ebas_unit" value="nmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
    <attribute name="ebas_method_ref" value="CH01L_MARES_GC_FID_VOCAIR_BRM" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_standard_id" value="D217055" />
    <attribute name="ebas_secondary_standard_id" value="Duebendorf air; RIX-filling; D2641594" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
    <attribute name="ebas_detection_limit_expl" value="Determined by integration of a baseline signal multiplied by a factor of 3" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) + systematic errors (accuracy)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CH01L, Swiss Federal Laboratories for Materials Science and Technology, EMPA, Section Air Pollution, Überlandstrasse 133, , 8600, Dübendorf, Switzerland" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;, &quot;Reimann, Stefan, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0  -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.00205539. -- Data converted on export from EBAS from 'ug/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.48652616." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethanolamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethanol amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ethanol_nmol_per_mol_ExpUnc2s" shape="qc_ethanol_nmol_per_mol_ExpUnc2s_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethanol_nmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethanol_ug_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ethanol_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="v_ethanol_ug_per_m3_ExpUnc2s_qc v_ethanol_ug_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
    <attribute name="ebas_station_wdca_id" value="GAWACH__BRM" />
    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
    <attribute name="ebas_station_altitude" value="797.0 m" />
    <attribute name="ebas_measurement_altitude" value="802.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethanol" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
    <attribute name="ebas_method_ref" value="CH01L_MARES_GC_FID_VOCAIR_BRM" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_standard_id" value="D217055" />
    <attribute name="ebas_secondary_standard_id" value="Duebendorf air; RIX-filling; D2641594" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) + systematic errors (accuracy)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CH01L, Swiss Federal Laboratories for Materials Science and Technology, EMPA, Section Air Pollution, Überlandstrasse 133, , 8600, Dübendorf, Switzerland" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;, &quot;Reimann, Stefan, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0  -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.00205539." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethanolmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="ethanol mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
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    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ethanol_ug_per_m3_ExpUnc2s" shape="qc_ethanol_ug_per_m3_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethanol_ug_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethanol_nmol_per_mol_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethanol_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="v_ethanol_nmol_per_mol_precision_qc v_ethanol_nmol_per_mol_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
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    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
    <attribute name="ebas_station_altitude" value="797.0 m" />
    <attribute name="ebas_measurement_altitude" value="802.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethanol" />
    <attribute name="ebas_unit" value="nmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
    <attribute name="ebas_method_ref" value="CH01L_MARES_GC_FID_VOCAIR_BRM" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_standard_id" value="D217055" />
    <attribute name="ebas_secondary_standard_id" value="Duebendorf air; RIX-filling; D2641594" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
    <attribute name="ebas_detection_limit_expl" value="Determined by integration of a baseline signal multiplied by a factor of 3" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) + systematic errors (accuracy)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CH01L, Swiss Federal Laboratories for Materials Science and Technology, EMPA, Section Air Pollution, Überlandstrasse 133, , 8600, Dübendorf, Switzerland" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;, &quot;Reimann, Stefan, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0  -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.00205539. -- Data converted on export from EBAS from 'ug/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.48652616." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethanolamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethanol amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ethanol_nmol_per_mol_precision" shape="qc_ethanol_nmol_per_mol_precision_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethanol_nmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethanol_ug_per_m3_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ethanol_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="v_ethanol_ug_per_m3_precision_qc v_ethanol_ug_per_m3_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
    <attribute name="ebas_station_wdca_id" value="GAWACH__BRM" />
    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
    <attribute name="ebas_station_altitude" value="797.0 m" />
    <attribute name="ebas_measurement_altitude" value="802.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethanol" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
    <attribute name="ebas_method_ref" value="CH01L_MARES_GC_FID_VOCAIR_BRM" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_standard_id" value="D217055" />
    <attribute name="ebas_secondary_standard_id" value="Duebendorf air; RIX-filling; D2641594" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit_expl" value="Determined by integration of a baseline signal multiplied by a factor of 3" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) + systematic errors (accuracy)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CH01L, Swiss Federal Laboratories for Materials Science and Technology, EMPA, Section Air Pollution, Überlandstrasse 133, , 8600, Dübendorf, Switzerland" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;, &quot;Reimann, Stefan, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0  -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.00205539." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethanolmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="ethanol mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ethanol_ug_per_m3_precision" shape="qc_ethanol_ug_per_m3_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethanol_ug_per_m3_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethene_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_ethene_amean_qc v_ethene_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
    <attribute name="ebas_station_wdca_id" value="GAWACH__BRM" />
    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
    <attribute name="ebas_station_altitude" value="797.0 m" />
    <attribute name="ebas_measurement_altitude" value="802.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
    <attribute name="ebas_method_ref" value="CH01L_MARES_GC_FID_VOCAIR_BRM" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_standard_id" value="D217055" />
    <attribute name="ebas_secondary_standard_id" value="Duebendorf air; RIX-filling; D2641594" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
    <attribute name="ebas_detection_limit" value="3.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Determined by integration of a baseline signal multiplied by a factor of 3" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) + systematic errors (accuracy)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CH01L, Swiss Federal Laboratories for Materials Science and Technology, EMPA, Section Air Pollution, Überlandstrasse 133, , 8600, Dübendorf, Switzerland" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;, &quot;Reimann, Stefan, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0 " />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/etheneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ethene_amean" shape="qc_ethene_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethene_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethene_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_ethene_ExpUnc2s_qc v_ethene_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
    <attribute name="ebas_station_wdca_id" value="GAWACH__BRM" />
    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
    <attribute name="ebas_station_altitude" value="797.0 m" />
    <attribute name="ebas_measurement_altitude" value="802.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethene" />
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    <attribute name="ebas_matrix" value="air" />
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    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethylbenzene" />
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    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
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    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
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    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
    <attribute name="ebas_detection_limit" value="3.0 pmol/mol" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0 " />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethylbenzeneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethylbenzene amount fraction" />
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    <attribute name="actris_temporal_resolution" value="PT1H" />
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  </variable>
  <variable name="qc_ethylbenzene_pmol_per_mol_amean" shape="qc_ethylbenzene_pmol_per_mol_amean_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethylbenzene_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethylbenzene_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethylbenzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_ethylbenzene_ng_per_m3_ExpUnc2s_qc v_ethylbenzene_ng_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
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    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
    <attribute name="ebas_station_altitude" value="797.0 m" />
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    <attribute name="ebas_component" value="ethylbenzene" />
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    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
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    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
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    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0  -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.737." />
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  <variable name="qc_ethylbenzene_ng_per_m3_ExpUnc2s" shape="qc_ethylbenzene_ng_per_m3_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
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    <attribute name="units" value="1" />
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  <variable name="meta_ethylbenzene_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
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    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="ebas_component" value="ethylbenzene" />
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    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
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    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0 " />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethylbenzeneamountfraction" />
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  <variable name="qc_ethylbenzene_pmol_per_mol_ExpUnc2s" shape="qc_ethylbenzene_pmol_per_mol_ExpUnc2s_flags time" type="int">
    <attribute name="units" value="1" />
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  <variable name="meta_ethylbenzene_pmol_per_mol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="v_ethylbenzene_ng_per_m3_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethylbenzene_in_air" />
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    <attribute name="ancillary_variables" value="v_ethylbenzene_ng_per_m3_precision_qc v_ethylbenzene_ng_per_m3_precision_ebasmetadata" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
    <attribute name="ebas_station_altitude" value="797.0 m" />
    <attribute name="ebas_measurement_altitude" value="802.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethylbenzene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
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    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
    <attribute name="ebas_method_ref" value="CH01L_MARES_GC_FID_VOCAIR_BRM" />
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    <attribute name="ebas_calibration_standard_id" value="D217055" />
    <attribute name="ebas_secondary_standard_id" value="Duebendorf air; RIX-filling; D2641594" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_submitter" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0  -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.737." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethylbenzenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="ethylbenzene mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_ethylbenzene_ng_per_m3_precision" shape="qc_ethylbenzene_ng_per_m3_precision_flags time" type="int">
    <attribute name="units" value="1" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
  </variable>
  <variable name="meta_ethylbenzene_ng_per_m3_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethylbenzene_pmol_per_mol_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethylbenzene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_ethylbenzene_pmol_per_mol_precision_qc v_ethylbenzene_pmol_per_mol_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
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    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
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    <attribute name="ebas_measurement_height" value="5.0 m" />
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    <attribute name="ebas_component" value="ethylbenzene" />
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    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
    <attribute name="ebas_method_ref" value="CH01L_MARES_GC_FID_VOCAIR_BRM" />
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    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
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    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0 " />
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  <variable name="qc_ethylbenzene_pmol_per_mol_precision" shape="qc_ethylbenzene_pmol_per_mol_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
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  <variable name="meta_ethylbenzene_pmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethyne_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
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    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
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    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
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    <attribute name="ebas_component" value="ethyne" />
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    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
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    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
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    <attribute name="ebas_submitter" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0 " />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethyneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethyne amount fraction" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
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  </variable>
  <variable name="qc_ethyne_amean" shape="qc_ethyne_amean_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethyne_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethyne_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethyne_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_ethyne_ExpUnc2s_qc v_ethyne_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
    <attribute name="ebas_station_wdca_id" value="GAWACH__BRM" />
    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
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    <attribute name="ebas_measurement_altitude" value="802.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
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    <attribute name="ebas_component" value="ethyne" />
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    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
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    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_submitter" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0 " />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/ethyneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="ethyne amount fraction" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
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  </variable>
  <variable name="qc_ethyne_ExpUnc2s" shape="qc_ethyne_ExpUnc2s_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_ethyne_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_ethyne_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethyne_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_ethyne_precision_qc v_ethyne_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
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    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
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    <attribute name="ebas_measurement_height" value="5.0 m" />
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    <attribute name="ebas_component" value="ethyne" />
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    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
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    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
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  <variable name="qc_ethyne_precision" shape="qc_ethyne_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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    <attribute name="units" value="1" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
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    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
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    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
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    <attribute name="ebas_component" value="isohexanes" />
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    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
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    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
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    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0 " />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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  <variable name="qc_isohexanes_amean" shape="qc_isohexanes_amean_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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  <variable name="meta_isohexanes_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_isohexanes_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_isohexanes_ExpUnc2s_qc v_isohexanes_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
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    <attribute name="ebas_station_code" value="CH0053R" />
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    <attribute name="ebas_station_name" value="Beromünster" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
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    <attribute name="ebas_station_wmo_region" type="long" value="7" />
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    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
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    <attribute name="ebas_component" value="isohexanes" />
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    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0 " />
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  <variable name="qc_isohexanes_ExpUnc2s" shape="qc_isohexanes_ExpUnc2s_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_isohexanes_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="v_isohexanes_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_isohexanes_precision_qc v_isohexanes_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
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    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
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    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
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    <attribute name="ebas_component" value="isoprene" />
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    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0  -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.04. Detection limit converted from '3.0 pmol/mol' to '9.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.04." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/isoprenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="isoprene mass concentration" />
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  <variable name="qc_isoprene_ng_per_m3_amean" shape="qc_isoprene_ng_per_m3_amean_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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  <variable name="meta_isoprene_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="v_isoprene_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_isoprene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
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    <attribute name="ebas_station_setting" value="Rural" />
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    <attribute name="ebas_station_wmo_region" type="long" value="7" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="actris_temporal_resolution" value="PT1H" />
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  <variable name="qc_methanol_amean" shape="qc_methanol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_methanol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_methanol_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_methanol_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
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    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
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    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_component" value="methanol" />
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    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0 " />
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    <attribute name="actris_temporal_resolution" value="PT1H" />
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  <variable name="qc_methanol_ExpUnc2s" shape="qc_methanol_ExpUnc2s_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
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  <variable name="meta_methanol_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="v_methanol_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_methanol_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_methanol_precision_qc v_methanol_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
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    <attribute name="ebas_station_land_use" value="Agricultural" />
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    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_regime" value="IMG" />
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    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0  -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.59. Detection limit converted from '3.0 pmol/mol' to '8.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 2.59." />
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    <attribute name="actris_variable_preferred_term" value="n-butane mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_n_butane_ng_per_m3_amean" shape="qc_n_butane_ng_per_m3_amean_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_n_butane_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_n_butane_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_butane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_n_butane_pmol_per_mol_amean_qc v_n_butane_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
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    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
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    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
    <attribute name="ebas_station_altitude" value="797.0 m" />
    <attribute name="ebas_measurement_altitude" value="802.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="n-butane" />
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    <attribute name="ebas_matrix" value="air" />
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    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
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    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
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    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0 " />
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    <attribute name="actris_variable_preferred_term" value="n-butane amount fraction" />
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  <variable name="qc_n_butane_pmol_per_mol_amean" shape="qc_n_butane_pmol_per_mol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_n_butane_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_n-butane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_n_butane_ng_per_m3_ExpUnc2s_qc v_n_butane_ng_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
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    <attribute name="ebas_station_name" value="Beromünster" />
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    <attribute name="ebas_component" value="n-butane" />
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  <variable name="meta_n_butane_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_butane_in_air" />
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    <attribute name="ebas_component" value="n-butane" />
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    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0  -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.47. Detection limit converted from '3.0 pmol/mol' to '13.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.47." />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="meta_n_hexane_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
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    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
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    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0  -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.845." />
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  <variable name="meta_n_hexane_ng_per_m3_ExpUnc2s" shape="metadata_time" type="String">
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    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0  -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.00268120." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/n-propanolmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="n-propanol mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
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  <variable name="qc_n_propanol_ug_per_m3_precision" shape="qc_n_propanol_ug_per_m3_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_n_propanol_ug_per_m3_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="v_o_xylene_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_o-xylene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_o_xylene_ng_per_m3_amean_qc v_o_xylene_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
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    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
    <attribute name="ebas_station_altitude" value="797.0 m" />
    <attribute name="ebas_measurement_altitude" value="802.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="o-xylene" />
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    <attribute name="ebas_matrix" value="air" />
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    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
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    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CH01L, Swiss Federal Laboratories for Materials Science and Technology, EMPA, Section Air Pollution, Überlandstrasse 133, , 8600, Dübendorf, Switzerland" />
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    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0  -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.74. Detection limit converted from '3.0 pmol/mol' to '14.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.74." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/o-xylenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="o-xylene mass concentration" />
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  <variable name="qc_o_xylene_ng_per_m3_amean" shape="qc_o_xylene_ng_per_m3_amean_flags time" type="int">
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  <variable name="meta_o_xylene_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="v_o_xylene_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_o_xylene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
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    <attribute name="ancillary_variables" value="v_o_xylene_pmol_per_mol_amean_qc v_o_xylene_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
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    <attribute name="ebas_station_gaw_type" value="R" />
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    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="o-xylene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
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    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0 " />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/o-xyleneamountfraction" />
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  <variable name="meta_o_xylene_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="o-xylene" />
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    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
    <attribute name="ebas_method_ref" value="CH01L_MARES_GC_FID_VOCAIR_BRM" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_standard_id" value="D217055" />
    <attribute name="ebas_secondary_standard_id" value="Duebendorf air; RIX-filling; D2641594" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
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    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) + systematic errors (accuracy)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CH01L, Swiss Federal Laboratories for Materials Science and Technology, EMPA, Section Air Pollution, Überlandstrasse 133, , 8600, Dübendorf, Switzerland" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;, &quot;Reimann, Stefan, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0 " />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/o-xyleneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="o-xylene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_o_xylene_pmol_per_mol_precision" shape="qc_o_xylene_pmol_per_mol_precision_flags time" type="int">
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_o_xylene_pmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propane_ng_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_propane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_propane_ng_per_m3_amean_qc v_propane_ng_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
    <attribute name="ebas_station_wdca_id" value="GAWACH__BRM" />
    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
    <attribute name="ebas_station_altitude" value="797.0 m" />
    <attribute name="ebas_measurement_altitude" value="802.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propane" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
    <attribute name="ebas_method_ref" value="CH01L_MARES_GC_FID_VOCAIR_BRM" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_standard_id" value="D217055" />
    <attribute name="ebas_secondary_standard_id" value="Duebendorf air; RIX-filling; D2641594" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="6.0 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by integration of a baseline signal multiplied by a factor of 3" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) + systematic errors (accuracy)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CH01L, Swiss Federal Laboratories for Materials Science and Technology, EMPA, Section Air Pollution, Überlandstrasse 133, , 8600, Dübendorf, Switzerland" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
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    <attribute name="ebas_submitter" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0  -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 1.97. Detection limit converted from '3.0 pmol/mol' to '6.0 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 1.97." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/propanemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="propane mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_propane_ng_per_m3_amean" shape="qc_propane_ng_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_propane_ng_per_m3_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propane_pmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_propane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_propane_pmol_per_mol_amean_qc v_propane_pmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
    <attribute name="ebas_station_wdca_id" value="GAWACH__BRM" />
    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
    <attribute name="ebas_station_altitude" value="797.0 m" />
    <attribute name="ebas_measurement_altitude" value="802.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
    <attribute name="ebas_method_ref" value="CH01L_MARES_GC_FID_VOCAIR_BRM" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_standard_id" value="D217055" />
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    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
    <attribute name="ebas_detection_limit" value="3.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Determined by integration of a baseline signal multiplied by a factor of 3" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CH01L, Swiss Federal Laboratories for Materials Science and Technology, EMPA, Section Air Pollution, Überlandstrasse 133, , 8600, Dübendorf, Switzerland" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;, &quot;Reimann, Stefan, , , , , , , , , &quot;" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0 " />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/propaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="propane amount fraction" />
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    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
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    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_propane_pmol_per_mol_amean" shape="qc_propane_pmol_per_mol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_propane_pmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propane_ng_per_m3_ExpUnc2s" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_propane_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="v_propane_ng_per_m3_ExpUnc2s_qc v_propane_ng_per_m3_ExpUnc2s_ebasmetadata" />
    <attribute name="cell_methods" value="time: expanded uncertainty 2sigma" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="expanded uncertainty 2sigma" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
    <attribute name="ebas_station_wdca_id" value="GAWACH__BRM" />
    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
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    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
    <attribute name="ebas_station_wdca_id" value="GAWACH__BRM" />
    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
    <attribute name="ebas_station_altitude" value="797.0 m" />
    <attribute name="ebas_measurement_altitude" value="802.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propane" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
    <attribute name="ebas_method_ref" value="CH01L_MARES_GC_FID_VOCAIR_BRM" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_standard_id" value="D217055" />
    <attribute name="ebas_secondary_standard_id" value="Duebendorf air; RIX-filling; D2641594" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
    <attribute name="ebas_detection_limit_expl" value="Determined by integration of a baseline signal multiplied by a factor of 3" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) + systematic errors (accuracy)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CH01L, Swiss Federal Laboratories for Materials Science and Technology, EMPA, Section Air Pollution, Überlandstrasse 133, , 8600, Dübendorf, Switzerland" />
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    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;, &quot;Reimann, Stefan, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0 " />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/propaneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="propane amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_propane_pmol_per_mol_precision" shape="qc_propane_pmol_per_mol_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_propane_pmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propanone_nmol_per_mol_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_propanone_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="v_propanone_nmol_per_mol_amean_qc v_propanone_nmol_per_mol_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
    <attribute name="ebas_station_wdca_id" value="GAWACH__BRM" />
    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
    <attribute name="ebas_station_altitude" value="797.0 m" />
    <attribute name="ebas_measurement_altitude" value="802.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propanone" />
    <attribute name="ebas_unit" value="nmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
    <attribute name="ebas_method_ref" value="CH01L_MARES_GC_FID_VOCAIR_BRM" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_standard_id" value="D217055" />
    <attribute name="ebas_secondary_standard_id" value="Duebendorf air; RIX-filling; D2641594" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
    <attribute name="ebas_detection_limit" value="0.003 nmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Determined by integration of a baseline signal multiplied by a factor of 3" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) + systematic errors (accuracy)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CH01L, Swiss Federal Laboratories for Materials Science and Technology, EMPA, Section Air Pollution, Überlandstrasse 133, , 8600, Dübendorf, Switzerland" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;, &quot;Reimann, Stefan, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0  -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.0025913. Detection limit converted from '3.0 pmol/mol' to '0.00777 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.0025913. -- Data converted on export from EBAS from 'ug/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.3859128. Detection limit converted from '0.00777 ug/m3' at 273.15 K, 1013.25 hPa to '0.003 nmol/mol', conversion factor 0.3859128." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/acetoneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="acetone amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_propanone_nmol_per_mol_amean" shape="qc_propanone_nmol_per_mol_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_propanone_nmol_per_mol_amean" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_propanone_ug_per_m3_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_propanone_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="v_propanone_ug_per_m3_amean_qc v_propanone_ug_per_m3_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
    <attribute name="ebas_station_wdca_id" value="GAWACH__BRM" />
    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
    <attribute name="ebas_station_altitude" value="797.0 m" />
    <attribute name="ebas_measurement_altitude" value="802.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="propanone" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
    <attribute name="ebas_method_ref" value="CH01L_MARES_GC_FID_VOCAIR_BRM" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_standard_id" value="D217055" />
    <attribute name="ebas_secondary_standard_id" value="Duebendorf air; RIX-filling; D2641594" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
    <attribute name="ebas_volume_std_temperature" value="273.15 K" />
    <attribute name="ebas_volume_std_pressure" value="1013.25 hPa" />
    <attribute name="ebas_detection_limit" value="0.00777 ug/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by integration of a baseline signal multiplied by a factor of 3" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) + systematic errors (accuracy)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CH01L, Swiss Federal Laboratories for Materials Science and Technology, EMPA, Section Air Pollution, Überlandstrasse 133, , 8600, Dübendorf, Switzerland" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;, &quot;Reimann, Stefan, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0  -- Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.0025913. Detection limit converted from '3.0 pmol/mol' to '0.00777 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.0025913." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/acetonemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="acetone mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_propanone_ug_per_m3_amean" shape="qc_propanone_ug_per_m3_amean_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_propanone_ug_per_m3_amean" shape="metadata_time" type="String">
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
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    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="ebas_originator" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;, &quot;Reimann, Stefan, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0  -- Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 4.111." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/toluenemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="toluene mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_toluene_ng_per_m3_precision" shape="qc_toluene_ng_per_m3_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_toluene_ng_per_m3_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_toluene_pmol_per_mol_precision" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_toluene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="v_toluene_pmol_per_mol_precision_qc v_toluene_pmol_per_mol_precision_ebasmetadata" />
    <attribute name="cell_methods" value="time: precision" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-03-12T16:17:44.000000Z" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="automatically generated by a script from Empa" />
    <attribute name="ebas_statistics" value="precision" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_station_code" value="CH0053R" />
    <attribute name="ebas_platform_code" value="CH0053S" />
    <attribute name="ebas_station_name" value="Beromünster" />
    <attribute name="ebas_station_wdca_id" value="GAWACH__BRM" />
    <attribute name="ebas_station_gaw_id" value="BRM" />
    <attribute name="ebas_station_gaw_name" value="BEROMUENSTER" />
    <attribute name="ebas_station_land_use" value="Agricultural" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" type="long" value="7" />
    <attribute name="ebas_station_latitude" type="double" value="47.18961391" />
    <attribute name="ebas_station_longitude" type="double" value="8.175433684" />
    <attribute name="ebas_station_altitude" value="797.0 m" />
    <attribute name="ebas_measurement_altitude" value="802.0 m" />
    <attribute name="ebas_measurement_height" value="5.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="toluene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="CH01L" />
    <attribute name="ebas_instrument_type" value="online_gc" />
    <attribute name="ebas_instrument_name" value="Agilent_MARKES-GC-FID_cn17373012_BRM" />
    <attribute name="ebas_instrument_manufacturer" value="MARKES+MARKES+Agilent" />
    <attribute name="ebas_instrument_model" value="Air Server-xr+UNITY-xr+7890B GC/FID-FID" />
    <attribute name="ebas_instrument_serial_number" value="cn17373012" />
    <attribute name="ebas_method_ref" value="CH01L_MARES_GC_FID_VOCAIR_BRM" />
    <attribute name="ebas_standard_method" value="SOP=ACTRIS_VOC_2014" />
    <attribute name="ebas_calibration_standard_id" value="D217055" />
    <attribute name="ebas_secondary_standard_id" value="Duebendorf air; RIX-filling; D2641594" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="ambient air is brought into the cabin through a main inlet (Ematal anodized aluminum) to a glass manifold line at a flow rate of 300 lpm. From the main inlet manifold PFA  tubing is used to connect the sampler and the GCFID" />
    <attribute name="ebas_detection_limit_expl" value="Determined by integration of a baseline signal multiplied by a factor of 3" />
    <attribute name="ebas_measurement_uncertainty_expl" value="Includes reproducibility (precision) + systematic errors (accuracy)" />
    <attribute name="ebas_zero_negative_values_code" value="Zero possible" />
    <attribute name="ebas_zero_negative_values" value="Zero values may appear due to statistical variations at very low concentrations" />
    <attribute name="ebas_organization" value="CH01L, Swiss Federal Laboratories for Materials Science and Technology, EMPA, Section Air Pollution, Überlandstrasse 133, , 8600, Dübendorf, Switzerland" />
    <attribute name="ebas_framework_acronym" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="ebas_framework_name" value="&quot;European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases&quot;, European Monitoring and Evaluation Programme, World Data Centre for Reactive Gases" />
    <attribute name="ebas_framework_description" value="&quot;ACTRIS is the European Research Infrastructure for the observation of Aerosol, Clouds, and Trace gases. ACTRIS is composed of observing stations, exploratory platforms, instruments calibration centres, and a data centre.&quot;, The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems., The World Data Centre for Reactive Gases is the data repository and archive for reactive gases of the World Meteorological Organisation's (WMO) Global Atmosphere Watch (GAW) programme." />
    <attribute name="ebas_framework_contact_name" value="Cathrine Lund Myhre, Kjetil Tørseth, Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="clm@nilu.no, kt@nilu.no, kt@nilu.no" />
    <attribute name="ebas_originator" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;, &quot;Reimann, Stefan, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Rubli, Pascal, pascal.rubli@empa.ch, Swiss Federal Laboratories for Materials Science and Technology, Empa, Air Pollution/Environmental Technology, Ueberlandstrasse 129, , CH-8600, Duebendorf, Switzerland&quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: ACTRIS, EMEP, GAW-WDCRG. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="For toluene, ethylbenzene, m-p-xylene, o-xylene, ethanal, methanol, propanone, and ethanol the calibration factor is calculated with the effective carbon number relative to benzene. Software used for processing: Chromatogram Integration: GCWerks 260119, concentration calculation: Tucavoc 0.1.5, EBAS .nas file generation: ebas_io 4.5.4,  quality assurance: avoca 0.15.0 " />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/tolueneamountfraction" />
    <attribute name="actris_variable_preferred_term" value="toluene amount fraction" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gasphase" />
    <attribute name="actris_matrix_preferred_term" value="gas phase" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/gaschromatograph-online" />
    <attribute name="actris_instrument_type_preferred_term" value="gas chromatograph, online" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/ACTRIS, https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP, https://vocabulary.actris.nilu.no/actris_controlled_lists/GAW-WDCRG" />
    <attribute name="actris_framework_preferred_term" value="ACTRIS, EMEP, GAW-WDCRG" />
    <attribute name="actris_temporal_resolution" value="PT1H" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_toluene_pmol_per_mol_precision" shape="qc_toluene_pmol_per_mol_precision_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_toluene_pmol_per_mol_precision" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="time" shape="time" type="double">
    <attribute name="long_name" value="time of measurement" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01T00:00:00Z" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="standard" />
    <attribute name="bounds" value="time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
  <variable name="metadata_time" shape="metadata_time" type="double">
    <attribute name="long_name" value="time of ebas metadata intervals" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01T00:00:00Z" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="standard" />
    <attribute name="bounds" value="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
</netcdf>
