<?xml version="1.0" encoding="UTF-8"?>
<netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2" location="Not provided because of security concerns.">
  <attribute name="Conventions" value="CF-1.8, ACDD-1.3" />
  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Ground based in situ observations of PTR-MS at Barcelona (Palau Reial) (ES0019U)" />
  <attribute name="keywords" value="methanol, acetonitrile, air, mass_59_organic_compounds, benzene, ES0019U, CAMPAIGN, toluene, Barcelona (Palau Reial), mole_fraction_of_methanol_in_air, mole_fraction_of_toluene_in_air, mass_concentration_of_styrene_in_air, mole_fraction_of_styrene_in_air, mole_fraction_of_aceto_nitrile_in_air, mole_fraction_of_isoprene_in_air, mole_fraction_of_monoterpenes_in_air, RI-URBANS, mass_107.086_organic_compounds, isoprene, mass_concentration_of_ethanal_in_air, mass_73.065_organic_compounds, monoterpenes, mole_fraction_of_ethanal_in_air, mole_fraction_of_benzene_in_air, ethanal, mass_concentration_of_isoprene_in_air, GAW-WDCRG, mass_71_organic_compounds, styrene" />
  <attribute name="id" value="6XQY-E8FR.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="CAMPAIGN, GAW-WDCRG, RI-URBANS" />
  <attribute name="acknowledgement" value="Request acknowledgement details from data originator" />
  <attribute name="doi" value="https://doi.org/10.48597/6XQY-E8FR" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Ana Maria Yañez-Serrano, Roger Seco, Andres Alastuey, acetonitrile, benzene, ethanal, isoprene, mass_107.086_organic_compounds, mass_59_organic_compounds, mass_71_organic_compounds, mass_73.065_organic_compounds, methanol, monoterpenes, styrene, toluene - PTR-MS at Barcelona (Palau Reial), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/6XQY-E8FR" />
  <attribute name="summary" value="Ground based in situ observations of PTR-MS at Barcelona (Palau Reial) (ES0019U). These measurements are gathered as a part of the following projects CAMPAIGN, GAW-WDCRG, RI-URBANS and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: acetonitrile in air (mole_fraction_of_aceto_nitrile_in_air), benzene in air (mole_fraction_of_benzene_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), isoprene in air (mass_concentration_of_isoprene_in_air), isoprene in air (mole_fraction_of_isoprene_in_air), mass_107.086_organic_compounds in air, mass_59_organic_compounds in air, mass_71_organic_compounds in air, mass_73.065_organic_compounds in air, methanol in air (mole_fraction_of_methanol_in_air), monoterpenes in air (mole_fraction_of_monoterpenes_in_air), styrene in air (mole_fraction_of_styrene_in_air), styrene in air (mass_concentration_of_styrene_in_air), toluene in air (mole_fraction_of_toluene_in_air), toluene in air (mole_fraction_of_toluene_in_air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, Jordi Girona 18-26, 08034, Barcelona, Spain" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2023-04-18T00:00:00 UTC" />
  <attribute name="date_metadata_modified" value="2023-04-18T00:00:00 UTC" />
  <attribute name="creator_name" value="Ana Maria Yañez-Serrano, Roger Seco, Andres Alastuey" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="ana.yanez@idaea.csic.es, roger.seco@idaea.csic.es, " />
  <attribute name="creator_institution" value="&quot;IDAEA-CSIC, EGAR&quot;, &quot;IDAEA-CSIC, EGAR&quot;, " />
  <attribute name="contributor_name" value="Ana Maria Yañez-Serrano" />
  <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 (41.387463 2.11532 80.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="41.387463" />
  <attribute name="geospatial_lat_max" type="double" value="41.387463" />
  <attribute name="geospatial_lon_min" type="double" value="2.11532" />
  <attribute name="geospatial_lon_max" type="double" value="2.11532" />
  <attribute name="geospatial_vertical_min" type="double" value="80.0" />
  <attribute name="geospatial_vertical_max" type="double" value="80.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2021-10-07T00:01:00 UTC" />
  <attribute name="time_coverage_end" value="2023-01-01T00:01:00 UTC" />
  <attribute name="time_coverage_duration" value="P0001-02-25T00:00:00" />
  <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="Ana Maria Yañez-Serrano, Roger Seco, Andres Alastuey, acetonitrile, benzene, ethanal, isoprene, mass_107.086_organic_compounds, mass_59_organic_compounds, mass_71_organic_compounds, mass_73.065_organic_compounds, methanol, monoterpenes, styrene, toluene - PTR-MS at Barcelona (Palau Reial), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/6XQY-E8FR" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="6XQY-E8FR.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/6XQY-E8FR" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/6XQY-E8FR" />
  <attribute name="ebas_file_creation" value="2023-12-12T09:56:01.751170 UTC" />
  <attribute name="ebas_export_state" value="2023-05-25T12:06:01.837257 UTC" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="20211007000100" />
  <attribute name="ebas_revision_date" value="20230418000000" />
  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_statistics" value="arithmetic mean" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="15mo" />
  <attribute name="ebas_resolution_code" value="1h" />
  <attribute name="ebas_sample_duration" value="1h" />
  <attribute name="ebas_station_code" value="ES0019U" />
  <attribute name="ebas_platform_code" value="ES0019S" />
  <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
  <attribute name="ebas_station_land_use" value="Urban park" />
  <attribute name="ebas_station_setting" value="Urban and center city" />
  <attribute name="ebas_station_latitude" value="41.387463" />
  <attribute name="ebas_station_longitude" value="2.11532" />
  <attribute name="ebas_station_altitude" value="80.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_matrix" value="air" />
  <attribute name="ebas_laboratory_code" value="ES05L" />
  <attribute name="ebas_instrument_type" value="PTR-MS" />
  <attribute name="ebas_instrument_name" value="PTR-TOF-MS_BCN_01" />
  <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
  <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
  <attribute name="ebas_method_ref" value="ES05L_PTR-TOF-MS" />
  <attribute name="ebas_inlet_type" value="Hat or hood" />
  <attribute name="ebas_inlet_description" value="5m inlet on top of cabin. Until 6/4/2022 inlet was a 1/8 teflon line without any insulation. Thereafter, inlet was heated and insulated." />
  <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics, detection limit flag is used (147)" />
  <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
  <attribute name="ebas_zero_negative_values" value="Zero and negative values may appear due to statistical variations and calibration uncertainty below the detection limit" />
  <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
  <attribute name="ebas_originator" value="Alastuey, Andres, , , , , , , , , " />
  <attribute name="ebas_submitter" value="Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain" />
  <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  <attribute name="_NCProperties" value="version=2,netcdf=4.9.0,hdf5=1.12.2" />
  <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="comment" value="{&#xA;    &quot;Data definition&quot;: &quot;EBAS_1.1&quot;,&#xA;    &quot;Data license&quot;: &quot;https://creativecommons.org/licenses/by/4.0/&quot;,&#xA;    &quot;Citation&quot;: &quot;Ana Maria Yañez-Serrano, Roger Seco, Andres Alastuey, acetonitrile, benzene, ethanal, isoprene, mass_107.086_organic_compounds, mass_59_organic_compounds, mass_71_organic_compounds, mass_73.065_organic_compounds, methanol, monoterpenes, styrene, toluene - PTR-MS at Barcelona (Palau Reial), data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/6XQY-E8FR&quot;,&#xA;    &quot;Set type code&quot;: &quot;TI&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;6XQY-E8FR.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/6XQY-E8FR&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/6XQY-E8FR&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-12T09:56:01.751170 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2023-05-25T12:06:01.837257 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20211007000100&quot;,&#xA;    &quot;Revision date&quot;: &quot;20230418000000&quot;,&#xA;    &quot;Version&quot;: &quot;1&quot;,&#xA;    &quot;Statistics&quot;: &quot;arithmetic mean&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;15mo&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1h&quot;,&#xA;    &quot;Sample duration&quot;: &quot;1h&quot;,&#xA;    &quot;Station code&quot;: &quot;ES0019U&quot;,&#xA;    &quot;Platform code&quot;: &quot;ES0019S&quot;,&#xA;    &quot;Station name&quot;: &quot;Barcelona (Palau Reial)&quot;,&#xA;    &quot;Station land use&quot;: &quot;Urban park&quot;,&#xA;    &quot;Station setting&quot;: &quot;Urban and center city&quot;,&#xA;    &quot;Station latitude&quot;: &quot;41.387463&quot;,&#xA;    &quot;Station longitude&quot;: &quot;2.11532&quot;,&#xA;    &quot;Station altitude&quot;: &quot;80.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Matrix&quot;: &quot;air&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;ES05L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;PTR-MS&quot;,&#xA;    &quot;Instrument name&quot;: &quot;PTR-TOF-MS_BCN_01&quot;,&#xA;    &quot;Instrument manufacturer&quot;: &quot;Ionicon Analytik&quot;,&#xA;    &quot;Instrument model&quot;: &quot;PTR-TOF 4000&quot;,&#xA;    &quot;Method ref&quot;: &quot;ES05L_PTR-TOF-MS&quot;,&#xA;    &quot;Inlet type&quot;: &quot;Hat or hood&quot;,&#xA;    &quot;Inlet description&quot;: &quot;5m inlet on top of cabin. Until 6/4/2022 inlet was a 1/8 teflon line without any insulation. Thereafter, inlet was heated and insulated.&quot;,&#xA;    &quot;Detection limit expl.&quot;: &quot;Determined by instrument counting statistics, detection limit flag is used (147)&quot;,&#xA;    &quot;Zero/negative values code&quot;: &quot;Zero/negative possible&quot;,&#xA;    &quot;Zero/negative values&quot;: &quot;Zero and negative values may appear due to statistical variations and calibration uncertainty below the detection limit&quot;,&#xA;    &quot;Organization&quot;: &quot;ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;,&#xA;    &quot;Originator&quot;: &quot;Alastuey, Andres, , , , , , , , , &quot;,&#xA;    &quot;Submitter&quot;: &quot;Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain&quot;,&#xA;    &quot;Acknowledgement&quot;: &quot;Request acknowledgement details from data originator&quot;&#xA;}" />
  <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="8849" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="3" />
  <dimension name="acetonitrile_qc_flags" length="1" />
  <dimension name="benzene_ng_per_m3_qc_flags" length="1" />
  <dimension name="benzene_pmol_per_mol_qc_flags" length="1" />
  <dimension name="ethanal_nmol_per_mol_qc_flags" length="1" />
  <dimension name="ethanal_ug_per_m3_qc_flags" length="1" />
  <dimension name="isoprene_ng_per_m3_qc_flags" length="1" />
  <dimension name="isoprene_pmol_per_mol_qc_flags" length="1" />
  <dimension name="mass_107.086_organic_compounds_qc_flags" length="1" />
  <dimension name="mass_59_organic_compounds_qc_flags" length="1" />
  <dimension name="mass_71_organic_compounds_qc_flags" length="1" />
  <dimension name="mass_73.065_organic_compounds_qc_flags" length="1" />
  <dimension name="methanol_qc_flags" length="1" />
  <dimension name="monoterpenes_qc_flags" length="1" />
  <dimension name="styrene_pmol_per_mol_qc_flags" length="1" />
  <dimension name="styrene_ug_per_m3_qc_flags" length="1" />
  <dimension name="toluene_ng_per_m3_qc_flags" length="1" />
  <dimension name="toluene_pmol_per_mol_qc_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2021-10-07T00:31:00Z" />
    <attribute name="time_coverage_end" value="2022-12-31T23:31:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="4403.0" />
    <attribute name="time_coverage_duration" value="P0Y0M450DT23H0M0.000S" />
  </group>
  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-05-18" />
    <attribute name="nciso_version" value="2.4.8" />
  </group>
  <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="acetonitrile" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_aceto_nitrile_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="acetonitrile_qc acetonitrile_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="20230418000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" value="41.387463" />
    <attribute name="ebas_station_longitude" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="acetonitrile" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR-TOF-MS_BCN_01" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR-TOF-MS" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="5m inlet on top of cabin. Until 6/4/2022 inlet was a 1/8 teflon line without any insulation. Thereafter, inlet was heated and insulated." />
    <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="7.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics, detection limit flag is used (147)" />
    <attribute name="ebas_measurement_uncertainty" value="8.0 %" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and negative values may appear due to statistical variations and calibration uncertainty below the detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_originator" value="Alastuey, Andres, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="acetonitrile_qc" shape="acetonitrile_qc_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="acetonitrile_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="benzene_ng_per_m3" 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="benzene_ng_per_m3_qc benzene_ng_per_m3_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="20230418000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" value="41.387463" />
    <attribute name="ebas_station_longitude" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 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="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR-TOF-MS_BCN_01" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR-TOF-MS" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="5m inlet on top of cabin. Until 6/4/2022 inlet was a 1/8 teflon line without any insulation. Thereafter, inlet was heated and insulated." />
    <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="6.9701179 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics, detection limit flag is used (147)" />
    <attribute name="ebas_measurement_uncertainty" value="6.0 %" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and negative values may appear due to statistical variations and calibration uncertainty below the detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_originator" value="Alastuey, Andres, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Data converted on export from EBAS from 'pmol/mol' to 'ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.485058937. Detection limit converted from '2.0 pmol/mol' to '6.9701179 ng/m3' at 273.15 K, 1013.25 hPa, conversion factor 3.485058937." />
  </variable>
  <variable name="benzene_ng_per_m3_qc" shape="benzene_ng_per_m3_qc_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="benzene_ng_per_m3_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="benzene_pmol_per_mol" 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="benzene_pmol_per_mol_qc benzene_pmol_per_mol_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="20230418000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" value="41.387463" />
    <attribute name="ebas_station_longitude" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 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="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR-TOF-MS_BCN_01" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR-TOF-MS" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="5m inlet on top of cabin. Until 6/4/2022 inlet was a 1/8 teflon line without any insulation. Thereafter, inlet was heated and insulated." />
    <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="2.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics, detection limit flag is used (147)" />
    <attribute name="ebas_measurement_uncertainty" value="6.0 %" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and negative values may appear due to statistical variations and calibration uncertainty below the detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_originator" value="Alastuey, Andres, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="benzene_pmol_per_mol_qc" shape="benzene_pmol_per_mol_qc_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="benzene_pmol_per_mol_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="ethanal_nmol_per_mol" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_ethanal_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="nmol/mol" />
    <attribute name="ancillary_variables" value="ethanal_nmol_per_mol_qc ethanal_nmol_per_mol_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="20230418000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" value="41.387463" />
    <attribute name="ebas_station_longitude" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethanal" />
    <attribute name="ebas_unit" value="nmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR-TOF-MS_BCN_01" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR-TOF-MS" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="5m inlet on top of cabin. Until 6/4/2022 inlet was a 1/8 teflon line without any insulation. Thereafter, inlet was heated and insulated." />
    <attribute name="ebas_detection_limit" value="0.055 nmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics, detection limit flag is used (147)" />
    <attribute name="ebas_measurement_uncertainty" value="7.0 %" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and negative values may appear due to statistical variations and calibration uncertainty below the detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_originator" value="Alastuey, Andres, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.00196544403511. Detection limit converted from '55.0 pmol/mol' to '0.108099421931 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.00196544403511. -- Data converted on export from EBAS from 'ug/m3' at 273.15 K, 1013.25 hPa to 'nmol/mol', conversion factor 0.5087908798909. Detection limit converted from '0.108099421931 ug/m3' at 273.15 K, 1013.25 hPa to '0.055 nmol/mol', conversion factor 0.5087908798909." />
  </variable>
  <variable name="ethanal_nmol_per_mol_qc" shape="ethanal_nmol_per_mol_qc_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="ethanal_nmol_per_mol_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="ethanal_ug_per_m3" shape="time" type="double">
    <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" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="ethanal_ug_per_m3_qc ethanal_ug_per_m3_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="20230418000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" value="41.387463" />
    <attribute name="ebas_station_longitude" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ethanal" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR-TOF-MS_BCN_01" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR-TOF-MS" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="5m inlet on top of cabin. Until 6/4/2022 inlet was a 1/8 teflon line without any insulation. Thereafter, inlet was heated and insulated." />
    <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="0.108099421931 ug/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics, detection limit flag is used (147)" />
    <attribute name="ebas_measurement_uncertainty" value="7.0 %" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and negative values may appear due to statistical variations and calibration uncertainty below the detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_originator" value="Alastuey, Andres, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.00196544403511. Detection limit converted from '55.0 pmol/mol' to '0.108099421931 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.00196544403511." />
  </variable>
  <variable name="ethanal_ug_per_m3_qc" shape="ethanal_ug_per_m3_qc_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="ethanal_ug_per_m3_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="isoprene_ng_per_m3" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_isoprene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="isoprene_ng_per_m3_qc isoprene_ng_per_m3_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="20230418000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" value="41.387463" />
    <attribute name="ebas_station_longitude" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="isoprene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR-TOF-MS_BCN_01" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR-TOF-MS" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="5m inlet on top of cabin. Until 6/4/2022 inlet was a 1/8 teflon line without any insulation. Thereafter, inlet was heated and insulated." />
    <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="12.1565266 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics, detection limit flag is used (147)" />
    <attribute name="ebas_measurement_uncertainty" value="8.0 %" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and negative values may appear due to statistical variations and calibration uncertainty below the detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_originator" value="Alastuey, Andres, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="isoprene_ng_per_m3_qc" shape="isoprene_ng_per_m3_qc_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="isoprene_ng_per_m3_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="isoprene_pmol_per_mol" 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" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="isoprene_pmol_per_mol_qc isoprene_pmol_per_mol_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="20230418000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" value="41.387463" />
    <attribute name="ebas_station_longitude" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="isoprene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR-TOF-MS_BCN_01" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR-TOF-MS" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="5m inlet on top of cabin. Until 6/4/2022 inlet was a 1/8 teflon line without any insulation. Thereafter, inlet was heated and insulated." />
    <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="4.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics, detection limit flag is used (147)" />
    <attribute name="ebas_measurement_uncertainty" value="8.0 %" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and negative values may appear due to statistical variations and calibration uncertainty below the detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_originator" value="Alastuey, Andres, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="isoprene_pmol_per_mol_qc" shape="isoprene_pmol_per_mol_qc_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="isoprene_pmol_per_mol_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="mass_107.086_organic_compounds" 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="mass_107.086_organic_compounds_qc mass_107.086_organic_compounds_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="20230418000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" value="41.387463" />
    <attribute name="ebas_station_longitude" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="mass_107.086_organic_compounds" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR-TOF-MS_BCN_01" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR-TOF-MS" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="5m inlet on top of cabin. Until 6/4/2022 inlet was a 1/8 teflon line without any insulation. Thereafter, inlet was heated and insulated." />
    <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="5.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics, detection limit flag is used (147)" />
    <attribute name="ebas_measurement_uncertainty" value="6.0 %" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and negative values may appear due to statistical variations and calibration uncertainty below the detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_originator" value="Alastuey, Andres, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="mass_107.086_organic_compounds_qc" shape="mass_107.086_organic_compounds_qc_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="mass_107.086_organic_compounds_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="mass_59_organic_compounds" 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="mass_59_organic_compounds_qc mass_59_organic_compounds_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="20230418000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" value="41.387463" />
    <attribute name="ebas_station_longitude" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="mass_59_organic_compounds" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR-TOF-MS_BCN_01" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR-TOF-MS" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="5m inlet on top of cabin. Until 6/4/2022 inlet was a 1/8 teflon line without any insulation. Thereafter, inlet was heated and insulated." />
    <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="9.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics, detection limit flag is used (147)" />
    <attribute name="ebas_measurement_uncertainty" value="6.0 %" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and negative values may appear due to statistical variations and calibration uncertainty below the detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_originator" value="Alastuey, Andres, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="mass_59_organic_compounds_qc" shape="mass_59_organic_compounds_qc_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="mass_59_organic_compounds_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="mass_71_organic_compounds" 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="mass_71_organic_compounds_qc mass_71_organic_compounds_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="20230418000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" value="41.387463" />
    <attribute name="ebas_station_longitude" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="mass_71_organic_compounds" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR-TOF-MS_BCN_01" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR-TOF-MS" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="5m inlet on top of cabin. Until 6/4/2022 inlet was a 1/8 teflon line without any insulation. Thereafter, inlet was heated and insulated." />
    <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="4.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics, detection limit flag is used (147)" />
    <attribute name="ebas_measurement_uncertainty" value="7.0 %" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and negative values may appear due to statistical variations and calibration uncertainty below the detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_originator" value="Alastuey, Andres, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="mass_71_organic_compounds_qc" shape="mass_71_organic_compounds_qc_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="mass_71_organic_compounds_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="mass_73.065_organic_compounds" 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="mass_73.065_organic_compounds_qc mass_73.065_organic_compounds_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="20230418000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" value="41.387463" />
    <attribute name="ebas_station_longitude" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="mass_73.065_organic_compounds" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR-TOF-MS_BCN_01" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR-TOF-MS" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="5m inlet on top of cabin. Until 6/4/2022 inlet was a 1/8 teflon line without any insulation. Thereafter, inlet was heated and insulated." />
    <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="4.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics, detection limit flag is used (147)" />
    <attribute name="ebas_measurement_uncertainty" value="7.0 %" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and negative values may appear due to statistical variations and calibration uncertainty below the detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_originator" value="Alastuey, Andres, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="mass_73.065_organic_compounds_qc" shape="mass_73.065_organic_compounds_qc_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="mass_73.065_organic_compounds_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="methanol" 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="methanol_qc methanol_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="20230418000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" value="41.387463" />
    <attribute name="ebas_station_longitude" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="methanol" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR-TOF-MS_BCN_01" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR-TOF-MS" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="5m inlet on top of cabin. Until 6/4/2022 inlet was a 1/8 teflon line without any insulation. Thereafter, inlet was heated and insulated." />
    <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="41.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics, detection limit flag is used (147)" />
    <attribute name="ebas_measurement_uncertainty" value="8.0 %" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and negative values may appear due to statistical variations and calibration uncertainty below the detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_originator" value="Alastuey, Andres, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="methanol_qc" shape="methanol_qc_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="methanol_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="monoterpenes" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_monoterpenes_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="monoterpenes_qc monoterpenes_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="20230418000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" value="41.387463" />
    <attribute name="ebas_station_longitude" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="monoterpenes" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR-TOF-MS_BCN_01" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR-TOF-MS" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="5m inlet on top of cabin. Until 6/4/2022 inlet was a 1/8 teflon line without any insulation. Thereafter, inlet was heated and insulated." />
    <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="1.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics, detection limit flag is used (147)" />
    <attribute name="ebas_measurement_uncertainty" value="6.0 %" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and negative values may appear due to statistical variations and calibration uncertainty below the detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_originator" value="Alastuey, Andres, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="monoterpenes_qc" shape="monoterpenes_qc_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="monoterpenes_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="styrene_pmol_per_mol" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mole_fraction_of_styrene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pmol/mol" />
    <attribute name="ancillary_variables" value="styrene_pmol_per_mol_qc styrene_pmol_per_mol_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="20230418000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" value="41.387463" />
    <attribute name="ebas_station_longitude" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="styrene" />
    <attribute name="ebas_unit" value="pmol/mol" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR-TOF-MS_BCN_01" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR-TOF-MS" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="5m inlet on top of cabin. Until 6/4/2022 inlet was a 1/8 teflon line without any insulation. Thereafter, inlet was heated and insulated." />
    <attribute name="ebas_detection_limit" value="3.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics, detection limit flag is used (147)" />
    <attribute name="ebas_measurement_uncertainty" value="6.0 %" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and negative values may appear due to statistical variations and calibration uncertainty below the detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_originator" value="Alastuey, Andres, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.004646745248829. Detection limit converted from '3.0 pmol/mol' to '0.0139402357465 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.004646745248829. -- Data converted on export from EBAS from 'ug/m3' at 273.15 K, 1013.25 hPa to 'pmol/mol', conversion factor 215.204395001407. Detection limit converted from '0.0139402357465 ug/m3' at 273.15 K, 1013.25 hPa to '3.0 pmol/mol', conversion factor 215.204395001407." />
  </variable>
  <variable name="styrene_pmol_per_mol_qc" shape="styrene_pmol_per_mol_qc_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="styrene_pmol_per_mol_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="styrene_ug_per_m3" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_styrene_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="styrene_ug_per_m3_qc styrene_ug_per_m3_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="20230418000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" value="41.387463" />
    <attribute name="ebas_station_longitude" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="styrene" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR-TOF-MS_BCN_01" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR-TOF-MS" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="5m inlet on top of cabin. Until 6/4/2022 inlet was a 1/8 teflon line without any insulation. Thereafter, inlet was heated and insulated." />
    <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="0.0139402357465 ug/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics, detection limit flag is used (147)" />
    <attribute name="ebas_measurement_uncertainty" value="6.0 %" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and negative values may appear due to statistical variations and calibration uncertainty below the detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_originator" value="Alastuey, Andres, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Data converted on import into EBAS from 'pmol/mol' to 'ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.004646745248829. Detection limit converted from '3.0 pmol/mol' to '0.0139402357465 ug/m3' at 273.15 K, 1013.25 hPa, conversion factor 0.004646745248829." />
  </variable>
  <variable name="styrene_ug_per_m3_qc" shape="styrene_ug_per_m3_qc_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="styrene_ug_per_m3_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="toluene_ng_per_m3" 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="ng/m3" />
    <attribute name="ancillary_variables" value="toluene_ng_per_m3_qc toluene_ng_per_m3_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="20230418000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" value="41.387463" />
    <attribute name="ebas_station_longitude" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="toluene" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="air" />
    <attribute name="ebas_laboratory_code" value="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR-TOF-MS_BCN_01" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR-TOF-MS" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="5m inlet on top of cabin. Until 6/4/2022 inlet was a 1/8 teflon line without any insulation. Thereafter, inlet was heated and insulated." />
    <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 instrument counting statistics, detection limit flag is used (147)" />
    <attribute name="ebas_measurement_uncertainty" value="6.0 %" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and negative values may appear due to statistical variations and calibration uncertainty below the detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_originator" value="Alastuey, Andres, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="toluene_ng_per_m3_qc" shape="toluene_ng_per_m3_qc_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="toluene_ng_per_m3_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="toluene_pmol_per_mol" 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="toluene_pmol_per_mol_qc toluene_pmol_per_mol_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="20230418000000" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1h" />
    <attribute name="ebas_station_code" value="ES0019U" />
    <attribute name="ebas_platform_code" value="ES0019S" />
    <attribute name="ebas_station_name" value="Barcelona (Palau Reial)" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" value="41.387463" />
    <attribute name="ebas_station_longitude" value="2.11532" />
    <attribute name="ebas_station_altitude" value="80.0 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="ES05L" />
    <attribute name="ebas_instrument_type" value="PTR-MS" />
    <attribute name="ebas_instrument_name" value="PTR-TOF-MS_BCN_01" />
    <attribute name="ebas_instrument_manufacturer" value="Ionicon Analytik" />
    <attribute name="ebas_instrument_model" value="PTR-TOF 4000" />
    <attribute name="ebas_method_ref" value="ES05L_PTR-TOF-MS" />
    <attribute name="ebas_inlet_type" value="Hat or hood" />
    <attribute name="ebas_inlet_description" value="5m inlet on top of cabin. Until 6/4/2022 inlet was a 1/8 teflon line without any insulation. Thereafter, inlet was heated and insulated." />
    <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="5.0 pmol/mol" />
    <attribute name="ebas_detection_limit_expl" value="Determined by instrument counting statistics, detection limit flag is used (147)" />
    <attribute name="ebas_measurement_uncertainty" value="6.0 %" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero and negative values may appear due to statistical variations and calibration uncertainty below the detection limit" />
    <attribute name="ebas_organization" value="ES05L, Institute of Environmental Assessment and Water Research, IDAEA-CSIC, , Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_originator" value="Alastuey, Andres, , , , , , , , , " />
    <attribute name="ebas_submitter" value="Yañez-Serrano, Ana Maria, ana.yanez@idaea.csic.es, IDAEA-CSIC, EGAR, , Carrer Jordi Girona 18-26, , 08034, Barcelona, Spain" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="toluene_pmol_per_mol_qc" shape="toluene_pmol_per_mol_qc_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="toluene_pmol_per_mol_ebasmetadata" 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 1900-01-01 00:00:00 UTC" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
    <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 1900-01-01 00:00:00 UTC" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
    <attribute name="bounds" value="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
</netcdf>
