<?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 low_vol_sampler at Ispra (IT0004R)" />
  <attribute name="keywords" value="chloride, mass_concentration_of_ammonium_in_pm2p5_in_air, mass_concentration_of_nitrate_in_pm2p5_in_air, Ispra, sulphate_total, nitrate, pm25, mass_concentration_of_magnesium_in_pm2p5_in_air, sodium, EMEP, potassium, mass_concentration_of_chloride_in_pm2p5_in_air, mass_concentration_of_sodium_in_pm2p5_in_air, ammonium, mass_concentration_of_potassium_in_pm2p5_in_air, mass_concentration_of_calcium_in_pm2p5_in_air, magnesium, IT0004R, calcium, mass_concentration_of_sulphate_total_in_pm2p5_in_air" />
  <attribute name="id" value="HK2G-49X6.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="EMEP" />
  <attribute name="acknowledgement" value="Request acknowledgement details from data originator" />
  <attribute name="doi" value="https://doi.org/10.48597/HK2G-49X6" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Fabrizia Cavalli, Fabrizia Cavalli, Rosanna Passarella, ammonium, calcium, chloride, magnesium, nitrate, potassium, sodium, sulphate_total - low_vol_sampler at Ispra, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/HK2G-49X6" />
  <attribute name="summary" value="Ground based in situ observations of low_vol_sampler at Ispra (IT0004R). These measurements are gathered as a part of the following projects EMEP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ammonium in pm25 (mass_concentration_of_ammonium_in_pm2p5_in_air), ammonium in pm25 (mass_concentration_of_ammonium_in_pm2p5_in_air), calcium in pm25 (mass_concentration_of_calcium_in_pm2p5_in_air), chloride in pm25 (mass_concentration_of_chloride_in_pm2p5_in_air), magnesium in pm25 (mass_concentration_of_magnesium_in_pm2p5_in_air), nitrate in pm25 (mass_concentration_of_nitrate_in_pm2p5_in_air), nitrate in pm25 (mass_concentration_of_nitrate_in_pm2p5_in_air), potassium in pm25 (mass_concentration_of_potassium_in_pm2p5_in_air), sodium in pm25 (mass_concentration_of_sodium_in_pm2p5_in_air), sulphate_total in pm25 (mass_concentration_of_sulphate_total_in_pm2p5_in_air), sulphate_total in pm25 (mass_concentration_of_sulphate_total_in_pm2p5_in_air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="IT04L, EC Joint Research Centre, EC-JRC-IES, Institute for Environment and Sustainability, Via Enrico Fermi 2749, 21027, Ispra, Italy" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2019-01-04T11:58:05 UTC" />
  <attribute name="date_metadata_modified" value="2019-01-04T11:58:05 UTC" />
  <attribute name="creator_name" value="Fabrizia Cavalli, Fabrizia Cavalli, Rosanna Passarella" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="fabrizia.cavalli@jrc.ec.europa.eu, fabrizia.cavalli@ec.europa.eu, rosanna.passarella@ec.europa.eu" />
  <attribute name="creator_institution" value="EC-JRC-IES, &quot;EC Joint Research Centre, EC-JRC&quot;, &quot;EC Joint Research Centre, EC-JRC&quot;" />
  <attribute name="contributor_name" value="JP Putaud, JP Putaud" />
  <attribute name="contributor_role" value="data submitter, 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 (45.8 8.633333 209.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="45.8" />
  <attribute name="geospatial_lat_max" type="double" value="45.8" />
  <attribute name="geospatial_lon_min" type="double" value="8.633333" />
  <attribute name="geospatial_lon_max" type="double" value="8.633333" />
  <attribute name="geospatial_vertical_min" type="double" value="209.0" />
  <attribute name="geospatial_vertical_max" type="double" value="209.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2015-01-01T08:00:00 UTC" />
  <attribute name="time_coverage_end" value="2018-01-01T08:00:00 UTC" />
  <attribute name="time_coverage_duration" value="P0003-00-00T00:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-01T00:00:00" />
  <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="Fabrizia Cavalli, Fabrizia Cavalli, Rosanna Passarella, ammonium, calcium, chloride, magnesium, nitrate, potassium, sodium, sulphate_total - low_vol_sampler at Ispra, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/HK2G-49X6" />
  <attribute name="ebas_set_type_code" value="TI" />
  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="HK2G-49X6.nc" />
  <attribute name="ebas_represents_doi" value="https://doi.org/10.48597/HK2G-49X6" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/HK2G-49X6" />
  <attribute name="ebas_file_creation" value="2023-12-11T20:40:39.309658 UTC" />
  <attribute name="ebas_export_state" value="2019-01-04T11:58:05.797000 UTC" />
  <attribute name="ebas_export_filter" value="exclude-900,exclude-invalid" />
  <attribute name="ebas_startdate" value="20150101080000" />
  <attribute name="ebas_revision_date" value="20190104115805" />
  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_version_description" value="initial revision manually inspected" />
  <attribute name="ebas_statistics" value="arithmetic mean" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="3y" />
  <attribute name="ebas_resolution_code" value="1d" />
  <attribute name="ebas_sample_duration" value="1d" />
  <attribute name="ebas_orig_time_res" value="1d" />
  <attribute name="ebas_station_code" value="IT0004R" />
  <attribute name="ebas_platform_code" value="IT0004S" />
  <attribute name="ebas_station_name" value="Ispra" />
  <attribute name="ebas_station_wdca_id" value="GAWAIT__IPR" />
  <attribute name="ebas_station_gaw_id" value="IPR" />
  <attribute name="ebas_station_gaw_name" value="Ispra" />
  <attribute name="ebas_station_land_use" value="Other" />
  <attribute name="ebas_station_setting" value="Rural" />
  <attribute name="ebas_station_gaw_type" value="R" />
  <attribute name="ebas_station_wmo_region" value="6" />
  <attribute name="ebas_station_latitude" value="45.8" />
  <attribute name="ebas_station_longitude" value="8.633333" />
  <attribute name="ebas_station_altitude" value="209.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_matrix" value="pm25" />
  <attribute name="ebas_laboratory_code" value="IT04L" />
  <attribute name="ebas_instrument_type" value="low_vol_sampler" />
  <attribute name="ebas_instrument_name" value="JRC_PM25_01" />
  <attribute name="ebas_instrument_manufacturer" value="Rupprecht&amp;Patashnick" />
  <attribute name="ebas_instrument_model" value="Partisol2025" />
  <attribute name="ebas_instrument_serial_number" value="B215620603" />
  <attribute name="ebas_method_ref" value="IT04L_JRC_IC_02" />
  <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
  <attribute name="ebas_inlet_type" value="Cyclone" />
  <attribute name="ebas_medium" value="Quartz" />
  <attribute name="ebas_coating_solution" value="None" />
  <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
  <attribute name="ebas_blank_correction" value="Blank corrected" />
  <attribute name="ebas_humidity_temperaure_control" value="None" />
  <attribute name="ebas_humidity_temperaure_control_description" value="Loaded filter kept at ambient temperature +/- 5K" />
  <attribute name="ebas_volume_std_temperature" value="ambient" />
  <attribute name="ebas_volume_std_pressure" value="ambient" />
  <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
  <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
  <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as measured and flagged with 780 if below detection limit" />
  <attribute name="ebas_organization" value="IT04L, EC Joint Research Centre, EC-JRC-IES, Institute for Environment and Sustainability, Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
  <attribute name="ebas_framework_acronym" value="EMEP" />
  <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme" />
  <attribute name="ebas_framework_description" value="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." />
  <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
  <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
  <attribute name="ebas_originator" value="Passarella, Rosanna, rosanna.passarella@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
  <attribute name="ebas_submitter" value="Putaud, JP, jean.putaud@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
  <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;Fabrizia Cavalli, Fabrizia Cavalli, Rosanna Passarella, ammonium, calcium, chloride, magnesium, nitrate, potassium, sodium, sulphate_total - low_vol_sampler at Ispra, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/HK2G-49X6&quot;,&#xA;    &quot;Set type code&quot;: &quot;TI&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;HK2G-49X6.nc&quot;,&#xA;    &quot;Represents DOI&quot;: &quot;https://doi.org/10.48597/HK2G-49X6&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/HK2G-49X6&quot;,&#xA;    &quot;File creation&quot;: &quot;2023-12-11T20:40:39.309658 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2019-01-04T11:58:05.797000 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20150101080000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20190104115805&quot;,&#xA;    &quot;Version&quot;: &quot;1&quot;,&#xA;    &quot;Version description&quot;: &quot;initial revision manually inspected&quot;,&#xA;    &quot;Statistics&quot;: &quot;arithmetic mean&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;3y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1d&quot;,&#xA;    &quot;Sample duration&quot;: &quot;1d&quot;,&#xA;    &quot;Orig. time res.&quot;: &quot;1d&quot;,&#xA;    &quot;Station code&quot;: &quot;IT0004R&quot;,&#xA;    &quot;Platform code&quot;: &quot;IT0004S&quot;,&#xA;    &quot;Station name&quot;: &quot;Ispra&quot;,&#xA;    &quot;Station WDCA-ID&quot;: &quot;GAWAIT__IPR&quot;,&#xA;    &quot;Station GAW-ID&quot;: &quot;IPR&quot;,&#xA;    &quot;Station GAW-Name&quot;: &quot;Ispra&quot;,&#xA;    &quot;Station land use&quot;: &quot;Other&quot;,&#xA;    &quot;Station setting&quot;: &quot;Rural&quot;,&#xA;    &quot;Station GAW type&quot;: &quot;R&quot;,&#xA;    &quot;Station WMO region&quot;: &quot;6&quot;,&#xA;    &quot;Station latitude&quot;: &quot;45.8&quot;,&#xA;    &quot;Station longitude&quot;: &quot;8.633333&quot;,&#xA;    &quot;Station altitude&quot;: &quot;209.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Matrix&quot;: &quot;pm25&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;IT04L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;low_vol_sampler&quot;,&#xA;    &quot;Instrument name&quot;: &quot;JRC_PM25_01&quot;,&#xA;    &quot;Instrument manufacturer&quot;: &quot;Rupprecht&amp;Patashnick&quot;,&#xA;    &quot;Instrument model&quot;: &quot;Partisol2025&quot;,&#xA;    &quot;Instrument serial number&quot;: &quot;B215620603&quot;,&#xA;    &quot;Method ref&quot;: &quot;IT04L_JRC_IC_02&quot;,&#xA;    &quot;Standard method&quot;: &quot;SOP=EMEP_manual_v1996&quot;,&#xA;    &quot;Inlet type&quot;: &quot;Cyclone&quot;,&#xA;    &quot;Medium&quot;: &quot;Quartz&quot;,&#xA;    &quot;Coating/Solution&quot;: &quot;None&quot;,&#xA;    &quot;Sample preparation&quot;: &quot;Water extraction after ultrasonic treatment&quot;,&#xA;    &quot;Blank correction&quot;: &quot;Blank corrected&quot;,&#xA;    &quot;Humidity/temperature control&quot;: &quot;None&quot;,&#xA;    &quot;Humidity/temperature control description&quot;: &quot;Loaded filter kept at ambient temperature +/- 5K&quot;,&#xA;    &quot;Volume std. temperature&quot;: &quot;ambient&quot;,&#xA;    &quot;Volume std. pressure&quot;: &quot;ambient&quot;,&#xA;    &quot;Detection limit expl.&quot;: &quot;Determined by taking 3 times standard deviation of ensemble of field blanks&quot;,&#xA;    &quot;Zero/negative values code&quot;: &quot;Zero/negative possible&quot;,&#xA;    &quot;Zero/negative values&quot;: &quot;Zero/negative values reported as measured and flagged with 780 if below detection limit&quot;,&#xA;    &quot;Organization&quot;: &quot;IT04L, EC Joint Research Centre, EC-JRC-IES, Institute for Environment and Sustainability, Via Enrico Fermi 2749, , 21027, Ispra, Italy&quot;,&#xA;    &quot;Framework acronym&quot;: &quot;EMEP&quot;,&#xA;    &quot;Framework name&quot;: &quot;European Monitoring and Evaluation Programme&quot;,&#xA;    &quot;Framework description&quot;: &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.&quot;,&#xA;    &quot;Framework contact name&quot;: &quot;Kjetil Tørseth&quot;,&#xA;    &quot;Framework contact email&quot;: &quot;kt@nilu.no&quot;,&#xA;    &quot;Originator&quot;: &quot;Passarella, Rosanna, rosanna.passarella@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy&quot;,&#xA;    &quot;Submitter&quot;: &quot;Putaud, JP, jean.putaud@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy&quot;,&#xA;    &quot;Acknowledgement&quot;: &quot;Request acknowledgement details from data originator&quot;&#xA;}" />
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  <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="730" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="2" />
  <dimension name="ammonium_ug_N_per_m3_qc_flags" length="1" />
  <dimension name="ammonium_ug_per_m3_qc_flags" length="1" />
  <dimension name="calcium_qc_flags" length="1" />
  <dimension name="chloride_qc_flags" length="1" />
  <dimension name="magnesium_qc_flags" length="1" />
  <dimension name="nitrate_ug_N_per_m3_qc_flags" length="1" />
  <dimension name="nitrate_ug_per_m3_qc_flags" length="1" />
  <dimension name="potassium_qc_flags" length="1" />
  <dimension name="sodium_qc_flags" length="1" />
  <dimension name="sulphate_total_ug_S_per_m3_qc_flags" length="1" />
  <dimension name="sulphate_total_ug_per_m3_qc_flags" length="1" />
  <group name="CFMetadata">
    <attribute name="time_coverage_start" value="2015-01-01T20:00:00Z" />
    <attribute name="time_coverage_end" value="2017-12-31T20:00:00Z" />
    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="129777.0" />
    <attribute name="time_coverage_duration" value="P0Y0M1095DT0H0M0.000S" />
  </group>
  <group name="NCISOMetadata">
    <attribute name="metadata_creation" value="2026-05-17" />
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    <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="ammonium_ug_N_per_m3" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug N/m3" />
    <attribute name="ancillary_variables" value="ammonium_ug N_per_m3_qc ammonium_ug N_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="20190104115805" />
    <attribute name="ebas_version" value="1" />
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    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="IT0004R" />
    <attribute name="ebas_platform_code" value="IT0004S" />
    <attribute name="ebas_station_name" value="Ispra" />
    <attribute name="ebas_station_wdca_id" value="GAWAIT__IPR" />
    <attribute name="ebas_station_gaw_id" value="IPR" />
    <attribute name="ebas_station_gaw_name" value="Ispra" />
    <attribute name="ebas_station_land_use" value="Other" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="45.8" />
    <attribute name="ebas_station_longitude" value="8.633333" />
    <attribute name="ebas_station_altitude" value="209.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ammonium" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="pm25" />
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    <attribute name="ebas_instrument_serial_number" value="B215620603" />
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    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
    <attribute name="ebas_inlet_type" value="Cyclone" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_coating_solution" value="None" />
    <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Loaded filter kept at ambient temperature +/- 5K" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as measured and flagged with 780 if below detection limit" />
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    <attribute name="ebas_framework_acronym" value="EMEP" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="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." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
    <attribute name="ebas_originator" value="Passarella, Rosanna, rosanna.passarella@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_submitter" value="Putaud, JP, jean.putaud@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
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    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
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  </variable>
  <variable name="ammonium_ug_per_m3" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ammonium_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="ammonium_ug_per_m3_qc ammonium_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="20190104115805" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="IT0004R" />
    <attribute name="ebas_platform_code" value="IT0004S" />
    <attribute name="ebas_station_name" value="Ispra" />
    <attribute name="ebas_station_wdca_id" value="GAWAIT__IPR" />
    <attribute name="ebas_station_gaw_id" value="IPR" />
    <attribute name="ebas_station_gaw_name" value="Ispra" />
    <attribute name="ebas_station_land_use" value="Other" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="45.8" />
    <attribute name="ebas_station_longitude" value="8.633333" />
    <attribute name="ebas_station_altitude" value="209.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ammonium" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="IT04L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="JRC_PM25_01" />
    <attribute name="ebas_instrument_manufacturer" value="Rupprecht&amp;Patashnick" />
    <attribute name="ebas_instrument_model" value="Partisol2025" />
    <attribute name="ebas_instrument_serial_number" value="B215620603" />
    <attribute name="ebas_method_ref" value="IT04L_JRC_IC_02" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
    <attribute name="ebas_inlet_type" value="Cyclone" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_coating_solution" value="None" />
    <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Loaded filter kept at ambient temperature +/- 5K" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit" value="0.1 ug/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as measured and flagged with 780 if below detection limit" />
    <attribute name="ebas_organization" value="IT04L, EC Joint Research Centre, EC-JRC-IES, Institute for Environment and Sustainability, Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_framework_acronym" value="EMEP" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="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." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
    <attribute name="ebas_originator" value="Passarella, Rosanna, rosanna.passarella@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_submitter" value="Putaud, JP, jean.putaud@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="ammonium_ug_per_m3_qc" shape="ammonium_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="ammonium_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="calcium" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_calcium_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="calcium_qc calcium_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="20190104115805" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="IT0004R" />
    <attribute name="ebas_platform_code" value="IT0004S" />
    <attribute name="ebas_station_name" value="Ispra" />
    <attribute name="ebas_station_wdca_id" value="GAWAIT__IPR" />
    <attribute name="ebas_station_gaw_id" value="IPR" />
    <attribute name="ebas_station_gaw_name" value="Ispra" />
    <attribute name="ebas_station_land_use" value="Other" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="45.8" />
    <attribute name="ebas_station_longitude" value="8.633333" />
    <attribute name="ebas_station_altitude" value="209.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="calcium" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="IT04L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="JRC_PM25_01" />
    <attribute name="ebas_instrument_manufacturer" value="Rupprecht&amp;Patashnick" />
    <attribute name="ebas_instrument_model" value="Partisol2025" />
    <attribute name="ebas_instrument_serial_number" value="B215620603" />
    <attribute name="ebas_method_ref" value="IT04L_JRC_IC_02" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
    <attribute name="ebas_inlet_type" value="Cyclone" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_coating_solution" value="None" />
    <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Loaded filter kept at ambient temperature +/- 5K" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as measured and flagged with 780 if below detection limit" />
    <attribute name="ebas_organization" value="IT04L, EC Joint Research Centre, EC-JRC-IES, Institute for Environment and Sustainability, Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_framework_acronym" value="EMEP" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="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." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
    <attribute name="ebas_originator" value="Passarella, Rosanna, rosanna.passarella@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_submitter" value="Putaud, JP, jean.putaud@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="calcium_qc" shape="calcium_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="calcium_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="chloride" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_chloride_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="chloride_qc chloride_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="20190104115805" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="IT0004R" />
    <attribute name="ebas_platform_code" value="IT0004S" />
    <attribute name="ebas_station_name" value="Ispra" />
    <attribute name="ebas_station_wdca_id" value="GAWAIT__IPR" />
    <attribute name="ebas_station_gaw_id" value="IPR" />
    <attribute name="ebas_station_gaw_name" value="Ispra" />
    <attribute name="ebas_station_land_use" value="Other" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="45.8" />
    <attribute name="ebas_station_longitude" value="8.633333" />
    <attribute name="ebas_station_altitude" value="209.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="chloride" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="IT04L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="JRC_PM25_01" />
    <attribute name="ebas_instrument_manufacturer" value="Rupprecht&amp;Patashnick" />
    <attribute name="ebas_instrument_model" value="Partisol2025" />
    <attribute name="ebas_instrument_serial_number" value="B215620603" />
    <attribute name="ebas_method_ref" value="IT04L_JRC_IC_02" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
    <attribute name="ebas_inlet_type" value="Cyclone" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_coating_solution" value="None" />
    <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Loaded filter kept at ambient temperature +/- 5K" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit" value="0.02 ug/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as measured and flagged with 780 if below detection limit" />
    <attribute name="ebas_organization" value="IT04L, EC Joint Research Centre, EC-JRC-IES, Institute for Environment and Sustainability, Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_framework_acronym" value="EMEP" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="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." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
    <attribute name="ebas_originator" value="Passarella, Rosanna, rosanna.passarella@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_submitter" value="Putaud, JP, jean.putaud@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="chloride_qc" shape="chloride_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="chloride_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="magnesium" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_magnesium_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="magnesium_qc magnesium_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="20190104115805" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="IT0004R" />
    <attribute name="ebas_platform_code" value="IT0004S" />
    <attribute name="ebas_station_name" value="Ispra" />
    <attribute name="ebas_station_wdca_id" value="GAWAIT__IPR" />
    <attribute name="ebas_station_gaw_id" value="IPR" />
    <attribute name="ebas_station_gaw_name" value="Ispra" />
    <attribute name="ebas_station_land_use" value="Other" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="45.8" />
    <attribute name="ebas_station_longitude" value="8.633333" />
    <attribute name="ebas_station_altitude" value="209.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="magnesium" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="IT04L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="JRC_PM25_01" />
    <attribute name="ebas_instrument_manufacturer" value="Rupprecht&amp;Patashnick" />
    <attribute name="ebas_instrument_model" value="Partisol2025" />
    <attribute name="ebas_instrument_serial_number" value="B215620603" />
    <attribute name="ebas_method_ref" value="IT04L_JRC_IC_02" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
    <attribute name="ebas_inlet_type" value="Cyclone" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_coating_solution" value="None" />
    <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Loaded filter kept at ambient temperature +/- 5K" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as measured and flagged with 780 if below detection limit" />
    <attribute name="ebas_organization" value="IT04L, EC Joint Research Centre, EC-JRC-IES, Institute for Environment and Sustainability, Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_framework_acronym" value="EMEP" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="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." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
    <attribute name="ebas_originator" value="Passarella, Rosanna, rosanna.passarella@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_submitter" value="Putaud, JP, jean.putaud@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="magnesium_qc" shape="magnesium_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="magnesium_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nitrate_ug_N_per_m3" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nitrate_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug N/m3" />
    <attribute name="ancillary_variables" value="nitrate_ug N_per_m3_qc nitrate_ug N_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="20190104115805" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="IT0004R" />
    <attribute name="ebas_platform_code" value="IT0004S" />
    <attribute name="ebas_station_name" value="Ispra" />
    <attribute name="ebas_station_wdca_id" value="GAWAIT__IPR" />
    <attribute name="ebas_station_gaw_id" value="IPR" />
    <attribute name="ebas_station_gaw_name" value="Ispra" />
    <attribute name="ebas_station_land_use" value="Other" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="45.8" />
    <attribute name="ebas_station_longitude" value="8.633333" />
    <attribute name="ebas_station_altitude" value="209.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrate" />
    <attribute name="ebas_unit" value="ug N/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="IT04L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="JRC_PM25_01" />
    <attribute name="ebas_instrument_manufacturer" value="Rupprecht&amp;Patashnick" />
    <attribute name="ebas_instrument_model" value="Partisol2025" />
    <attribute name="ebas_instrument_serial_number" value="B215620603" />
    <attribute name="ebas_method_ref" value="IT04L_JRC_IC_02" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
    <attribute name="ebas_inlet_type" value="Cyclone" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_coating_solution" value="None" />
    <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Loaded filter kept at ambient temperature +/- 5K" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as measured and flagged with 780 if below detection limit" />
    <attribute name="ebas_organization" value="IT04L, EC Joint Research Centre, EC-JRC-IES, Institute for Environment and Sustainability, Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_framework_acronym" value="EMEP" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="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." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
    <attribute name="ebas_originator" value="Passarella, Rosanna, rosanna.passarella@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_submitter" value="Putaud, JP, jean.putaud@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="nitrate_ug_N_per_m3_qc" shape="nitrate_ug_N_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="nitrate_ug_N_per_m3_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nitrate_ug_per_m3" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nitrate_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="nitrate_ug_per_m3_qc nitrate_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="20190104115805" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="IT0004R" />
    <attribute name="ebas_platform_code" value="IT0004S" />
    <attribute name="ebas_station_name" value="Ispra" />
    <attribute name="ebas_station_wdca_id" value="GAWAIT__IPR" />
    <attribute name="ebas_station_gaw_id" value="IPR" />
    <attribute name="ebas_station_gaw_name" value="Ispra" />
    <attribute name="ebas_station_land_use" value="Other" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="45.8" />
    <attribute name="ebas_station_longitude" value="8.633333" />
    <attribute name="ebas_station_altitude" value="209.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrate" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="IT04L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="JRC_PM25_01" />
    <attribute name="ebas_instrument_manufacturer" value="Rupprecht&amp;Patashnick" />
    <attribute name="ebas_instrument_model" value="Partisol2025" />
    <attribute name="ebas_instrument_serial_number" value="B215620603" />
    <attribute name="ebas_method_ref" value="IT04L_JRC_IC_02" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
    <attribute name="ebas_inlet_type" value="Cyclone" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_coating_solution" value="None" />
    <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Loaded filter kept at ambient temperature +/- 5K" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as measured and flagged with 780 if below detection limit" />
    <attribute name="ebas_organization" value="IT04L, EC Joint Research Centre, EC-JRC-IES, Institute for Environment and Sustainability, Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_framework_acronym" value="EMEP" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="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." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
    <attribute name="ebas_originator" value="Passarella, Rosanna, rosanna.passarella@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_submitter" value="Putaud, JP, jean.putaud@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="nitrate_ug_per_m3_qc" shape="nitrate_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="nitrate_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="potassium" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_potassium_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="potassium_qc potassium_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="20190104115805" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="IT0004R" />
    <attribute name="ebas_platform_code" value="IT0004S" />
    <attribute name="ebas_station_name" value="Ispra" />
    <attribute name="ebas_station_wdca_id" value="GAWAIT__IPR" />
    <attribute name="ebas_station_gaw_id" value="IPR" />
    <attribute name="ebas_station_gaw_name" value="Ispra" />
    <attribute name="ebas_station_land_use" value="Other" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="45.8" />
    <attribute name="ebas_station_longitude" value="8.633333" />
    <attribute name="ebas_station_altitude" value="209.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="potassium" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="IT04L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="JRC_PM25_01" />
    <attribute name="ebas_instrument_manufacturer" value="Rupprecht&amp;Patashnick" />
    <attribute name="ebas_instrument_model" value="Partisol2025" />
    <attribute name="ebas_instrument_serial_number" value="B215620603" />
    <attribute name="ebas_method_ref" value="IT04L_JRC_IC_02" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
    <attribute name="ebas_inlet_type" value="Cyclone" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_coating_solution" value="None" />
    <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Loaded filter kept at ambient temperature +/- 5K" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as measured and flagged with 780 if below detection limit" />
    <attribute name="ebas_organization" value="IT04L, EC Joint Research Centre, EC-JRC-IES, Institute for Environment and Sustainability, Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_framework_acronym" value="EMEP" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="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." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
    <attribute name="ebas_originator" value="Passarella, Rosanna, rosanna.passarella@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_submitter" value="Putaud, JP, jean.putaud@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="potassium_qc" shape="potassium_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="potassium_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="sodium" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_sodium_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="sodium_qc sodium_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="20190104115805" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="IT0004R" />
    <attribute name="ebas_platform_code" value="IT0004S" />
    <attribute name="ebas_station_name" value="Ispra" />
    <attribute name="ebas_station_wdca_id" value="GAWAIT__IPR" />
    <attribute name="ebas_station_gaw_id" value="IPR" />
    <attribute name="ebas_station_gaw_name" value="Ispra" />
    <attribute name="ebas_station_land_use" value="Other" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="45.8" />
    <attribute name="ebas_station_longitude" value="8.633333" />
    <attribute name="ebas_station_altitude" value="209.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="sodium" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="IT04L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="JRC_PM25_01" />
    <attribute name="ebas_instrument_manufacturer" value="Rupprecht&amp;Patashnick" />
    <attribute name="ebas_instrument_model" value="Partisol2025" />
    <attribute name="ebas_instrument_serial_number" value="B215620603" />
    <attribute name="ebas_method_ref" value="IT04L_JRC_IC_02" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
    <attribute name="ebas_inlet_type" value="Cyclone" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_coating_solution" value="None" />
    <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Loaded filter kept at ambient temperature +/- 5K" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as measured and flagged with 780 if below detection limit" />
    <attribute name="ebas_organization" value="IT04L, EC Joint Research Centre, EC-JRC-IES, Institute for Environment and Sustainability, Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_framework_acronym" value="EMEP" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="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." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
    <attribute name="ebas_originator" value="Passarella, Rosanna, rosanna.passarella@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_submitter" value="Putaud, JP, jean.putaud@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="sodium_qc" shape="sodium_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="sodium_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="sulphate_total_ug_S_per_m3" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_sulphate_total_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug S/m3" />
    <attribute name="ancillary_variables" value="sulphate_total_ug S_per_m3_qc sulphate_total_ug S_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="20190104115805" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="IT0004R" />
    <attribute name="ebas_platform_code" value="IT0004S" />
    <attribute name="ebas_station_name" value="Ispra" />
    <attribute name="ebas_station_wdca_id" value="GAWAIT__IPR" />
    <attribute name="ebas_station_gaw_id" value="IPR" />
    <attribute name="ebas_station_gaw_name" value="Ispra" />
    <attribute name="ebas_station_land_use" value="Other" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="45.8" />
    <attribute name="ebas_station_longitude" value="8.633333" />
    <attribute name="ebas_station_altitude" value="209.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="sulphate_total" />
    <attribute name="ebas_unit" value="ug S/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="IT04L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="JRC_PM25_01" />
    <attribute name="ebas_instrument_manufacturer" value="Rupprecht&amp;Patashnick" />
    <attribute name="ebas_instrument_model" value="Partisol2025" />
    <attribute name="ebas_instrument_serial_number" value="B215620603" />
    <attribute name="ebas_method_ref" value="IT04L_JRC_IC_02" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
    <attribute name="ebas_inlet_type" value="Cyclone" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_coating_solution" value="None" />
    <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Loaded filter kept at ambient temperature +/- 5K" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit" value="0.01 ug S/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as measured and flagged with 780 if below detection limit" />
    <attribute name="ebas_organization" value="IT04L, EC Joint Research Centre, EC-JRC-IES, Institute for Environment and Sustainability, Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_framework_acronym" value="EMEP" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="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." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
    <attribute name="ebas_originator" value="Passarella, Rosanna, rosanna.passarella@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_submitter" value="Putaud, JP, jean.putaud@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="sulphate_total_ug_S_per_m3_qc" shape="sulphate_total_ug_S_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="sulphate_total_ug_S_per_m3_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="sulphate_total_ug_per_m3" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_sulphate_total_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="sulphate_total_ug_per_m3_qc sulphate_total_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="20190104115805" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision manually inspected" />
    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="IT0004R" />
    <attribute name="ebas_platform_code" value="IT0004S" />
    <attribute name="ebas_station_name" value="Ispra" />
    <attribute name="ebas_station_wdca_id" value="GAWAIT__IPR" />
    <attribute name="ebas_station_gaw_id" value="IPR" />
    <attribute name="ebas_station_gaw_name" value="Ispra" />
    <attribute name="ebas_station_land_use" value="Other" />
    <attribute name="ebas_station_setting" value="Rural" />
    <attribute name="ebas_station_gaw_type" value="R" />
    <attribute name="ebas_station_wmo_region" value="6" />
    <attribute name="ebas_station_latitude" value="45.8" />
    <attribute name="ebas_station_longitude" value="8.633333" />
    <attribute name="ebas_station_altitude" value="209.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="sulphate_total" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="IT04L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="JRC_PM25_01" />
    <attribute name="ebas_instrument_manufacturer" value="Rupprecht&amp;Patashnick" />
    <attribute name="ebas_instrument_model" value="Partisol2025" />
    <attribute name="ebas_instrument_serial_number" value="B215620603" />
    <attribute name="ebas_method_ref" value="IT04L_JRC_IC_02" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v1996" />
    <attribute name="ebas_inlet_type" value="Cyclone" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_coating_solution" value="None" />
    <attribute name="ebas_sample_preparation" value="Water extraction after ultrasonic treatment" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="Loaded filter kept at ambient temperature +/- 5K" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit" value="0.0 ug/m3" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as measured and flagged with 780 if below detection limit" />
    <attribute name="ebas_organization" value="IT04L, EC Joint Research Centre, EC-JRC-IES, Institute for Environment and Sustainability, Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_framework_acronym" value="EMEP" />
    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme" />
    <attribute name="ebas_framework_description" value="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." />
    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
    <attribute name="ebas_originator" value="Passarella, Rosanna, rosanna.passarella@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_submitter" value="Putaud, JP, jean.putaud@ec.europa.eu, EC Joint Research Centre, EC-JRC, , Via Enrico Fermi 2749, , 21027, Ispra, Italy" />
    <attribute name="ebas_acknowledgement" value="Request acknowledgement details from data originator" />
  </variable>
  <variable name="sulphate_total_ug_per_m3_qc" shape="sulphate_total_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="sulphate_total_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="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>
