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  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="OC/EC and inorganics in air and particle phase at Monte Martano" />
  <attribute name="keywords" value="magnesium, EMEP, mass_concentration_of_sulphate_expressed_as_sulphur_in_pm10_dry_aerosol_particles_in_air, mass_concentration_of_elemental_carbon_in_pm10_in_air, mass_concentration_of_nitrate_expressed_as_nitrogen_in_pm10_dry_aerosol_particles_in_air, nitrate, total_carbon, sulphate_corrected, organic_carbon, chloride, Monte Martano, ammonium, IT0019R, mass_concentration_of_sulphate_in_pm10_dry_aerosol_particles_in_air, mass_concentration_of_potassium_in_pm10_in_air, mass_concentration_of_total_carbon_in_pm10_in_air, sodium, sulphate_total, mass_concentration_of_sulphate_corrected_for_seaspray_expressed_as_sulphur_in_pm10_dry_aerosol_particles_in_air, calcium, elemental_carbon, mass_concentration_of_ammonium_expressed_as_nitrogen_in_pm10_dry_aerosol_particles_in_air, mass_concentration_of_chloride_in_pm10_in_air, mass_concentration_of_sulphate_corrected_for_seaspray_in_pm10_dry_aerosol_particles_in_air, pm10, mass_concentration_of_organic_carbon_in_pm10_in_air, mass_concentration_of_sodium_in_pm10_in_air, mass_concentration_of_calcium_in_pm10_in_air, mass_concentration_of_ammonium_in_pm10_dry_aerosol_particles_in_air, mass_concentration_of_nitrate_in_pm10_dry_aerosol_particles_in_air, mass_concentration_of_magnesium_in_pm10_in_air, potassium" />
  <attribute name="id" value="IT0019R.20220102000000.20260416102536.low_vol_sampler..pm10.29d.1d.IT15L_SWAM_DC..lev2.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="EMEP" />
  <attribute name="acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Request acknowledgement details from data originator" />
  <attribute name="doi" value="https://doi.org/10.48597/QGQX-CV9H|https://doi.org/10.48597/AWRQ-NW6Z" separator="|" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Vecchiocattivi, M., EMEP, 2026, OC/EC and inorganics in air and particle phase at Monte Martano, data hosted by EBAS at NILU, Part of DOI: https://doi.org/10.48597/QGQX-CV9H, https://doi.org/10.48597/AWRQ-NW6Z" />
  <attribute name="summary" value="OC/EC and inorganics in air and particle phase at Monte Martano. 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 pm10 (mass_concentration_of_ammonium_expressed_as_nitrogen_in_pm10_dry_aerosol_particles_in_air), ammonium in pm10 (mass_concentration_of_ammonium_in_pm10_dry_aerosol_particles_in_air), calcium in pm10 (mass_concentration_of_calcium_in_pm10_in_air), chloride in pm10 (mass_concentration_of_chloride_in_pm10_in_air), elemental_carbon in pm10 (mass_concentration_of_elemental_carbon_in_pm10_in_air), elemental_carbon in pm10 (mass_concentration_of_elemental_carbon_in_pm10_in_air), magnesium in pm10 (mass_concentration_of_magnesium_in_pm10_in_air), nitrate in pm10 (mass_concentration_of_nitrate_expressed_as_nitrogen_in_pm10_dry_aerosol_particles_in_air), nitrate in pm10 (mass_concentration_of_nitrate_in_pm10_dry_aerosol_particles_in_air), organic_carbon in pm10 (mass_concentration_of_organic_carbon_in_pm10_in_air), organic_carbon in pm10 (mass_concentration_of_organic_carbon_in_pm10_in_air), potassium in pm10 (mass_concentration_of_potassium_in_pm10_in_air), sodium in pm10 (mass_concentration_of_sodium_in_pm10_in_air), sulphate_corrected in pm10 (mass_concentration_of_sulphate_corrected_for_seaspray_expressed_as_sulphur_in_pm10_dry_aerosol_particles_in_air), sulphate_corrected in pm10 (mass_concentration_of_sulphate_corrected_for_seaspray_in_pm10_dry_aerosol_particles_in_air), sulphate_total in pm10 (mass_concentration_of_sulphate_expressed_as_sulphur_in_pm10_dry_aerosol_particles_in_air), sulphate_total in pm10 (mass_concentration_of_sulphate_in_pm10_dry_aerosol_particles_in_air), total_carbon in pm10 (mass_concentration_of_total_carbon_in_pm10_in_air), total_carbon in pm10 (mass_concentration_of_total_carbon_in_pm10_in_air)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="IT15L, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, Via Pievaiola 207/B-3, 06132, Perugia, Italy" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2026-04-16T10:25:36 UTC" />
  <attribute name="date_metadata_modified" value="2026-04-16T10:25:36 UTC" />
  <attribute name="creator_name" value="Marco Vecchiocattivi" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="m.vecchiocattivi@arpa.umbria.it" />
  <attribute name="creator_institution" value="&quot;Arpa Umbria - Umbria Regional Agency for Environmental Protection, Sezione chimica Aria, ARPA-Umbria&quot;" />
  <attribute name="contributor_name" value="Marco Vecchiocattivi, David Cappelletti" />
  <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="MULTIPOINT Z ((42.805462 12.565645 1092.0), (42.805462 12.565645 1093.0))" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="42.805462" />
  <attribute name="geospatial_lat_max" type="double" value="42.805462" />
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  <attribute name="geospatial_lon_max" type="double" value="12.565645" />
  <attribute name="geospatial_vertical_min" type="double" value="1092.0" />
  <attribute name="geospatial_vertical_max" type="double" value="1093.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2022-01-02T00:00:00 UTC" />
  <attribute name="time_coverage_end" value="2022-01-31T00:00:00 UTC" />
  <attribute name="time_coverage_duration" value="P0000-00-29T00:00:00" />
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  <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="ebas_citation" value="Vecchiocattivi, M., EMEP, 2026, OC/EC and inorganics in air and particle phase at Monte Martano, data hosted by EBAS at NILU, Part of DOI: https://doi.org/10.48597/QGQX-CV9H, https://doi.org/10.48597/AWRQ-NW6Z" />
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  <attribute name="ebas_timezone" value="UTC" />
  <attribute name="ebas_file_name" value="IT0019R.20220102000000.20260416102536.low_vol_sampler..pm10.29d.1d.IT15L_SWAM_DC..lev2.nc" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/QGQX-CV9H, https://doi.org/10.48597/AWRQ-NW6Z" />
  <attribute name="ebas_file_creation" value="2026-04-16T14:31:22.485179 UTC" />
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  <attribute name="ebas_version" value="1" />
  <attribute name="ebas_version_description" value="initial revision, manually inspected" />
  <attribute name="ebas_data_level" value="2" />
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  <attribute name="ebas_resolution_code" value="1d" />
  <attribute name="ebas_sample_duration" value="1d" />
  <attribute name="ebas_station_code" value="IT0019R" />
  <attribute name="ebas_platform_code" value="IT0019S" />
  <attribute name="ebas_station_name" value="Monte Martano" />
  <attribute name="ebas_station_land_use" value="Grassland" />
  <attribute name="ebas_station_setting" value="Mountain" />
  <attribute name="ebas_station_latitude" value="42.805462" />
  <attribute name="ebas_station_longitude" value="12.565645" />
  <attribute name="ebas_station_altitude" value="1090.0 m" />
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  <attribute name="ebas_measurement_longitude" value="12.565645" />
  <attribute name="ebas_measurement_height" value="3.2 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_matrix" value="pm10" />
  <attribute name="ebas_laboratory_code" value="IT15L" />
  <attribute name="ebas_instrument_type" value="low_vol_sampler" />
  <attribute name="ebas_instrument_name" value="SWAM_DC" />
  <attribute name="ebas_instrument_manufacturer" value="FAI Instruments" />
  <attribute name="ebas_instrument_model" value="SWAM 5A Dual Channel" />
  <attribute name="ebas_instrument_serial_number" value="227" />
  <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
  <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
  <attribute name="ebas_zero_negative_values" value="Zero and neg. values may not appear" />
  <attribute name="ebas_qa1_measure_id" value="EMEP40" />
  <attribute name="ebas_qa1_date" value="2023-02-28 UTC" />
  <attribute name="ebas_qa1_document_name" value="Summary statistics EMEP laboratory intercalibration Round 40" />
  <attribute name="ebas_qa1_document_date" value="2023-03-01 UTC" />
  <attribute name="ebas_qa1_document_url" value="http://www.nilu.no/projects/ccc/qameasure/emep40.pdf" />
  <attribute name="ebas_organization" value="IT15L, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, , Via Pievaiola 207/B-3, , 06132, Perugia, 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="Vecchiocattivi, Marco, m.vecchiocattivi@arpa.umbria.it, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, Sezione chimica Aria, Via Pievaiola 207/B-3, , 06132, Perugia, Italy" />
  <attribute name="ebas_submitter" value="Cappelletti, David, david.cappelletti@unipg.it, University of Perugia, UNIPG, Department of Chemistry Biology and Biotechnology, Via Elce di Sotto 8, , 06123, Perugia, Italy" />
  <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Request acknowledgement details from data originator" />
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  <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;Vecchiocattivi, M., EMEP, 2026, OC/EC and inorganics in air and particle phase at Monte Martano, data hosted by EBAS at NILU, Part of DOI: https://doi.org/10.48597/QGQX-CV9H, https://doi.org/10.48597/AWRQ-NW6Z&quot;,&#xA;    &quot;Set type code&quot;: &quot;TI&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;IT0019R.20220102000000.20260416102536.low_vol_sampler..pm10.29d.1d.IT15L_SWAM_DC..lev2.nc&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/QGQX-CV9H, https://doi.org/10.48597/AWRQ-NW6Z&quot;,&#xA;    &quot;File creation&quot;: &quot;2026-04-16T14:31:22.485179 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2026-04-16T14:25:02.847755 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20220102000000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20260416102536&quot;,&#xA;    &quot;Version&quot;: &quot;1&quot;,&#xA;    &quot;Version description&quot;: &quot;initial revision, manually inspected&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;29d&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1d&quot;,&#xA;    &quot;Sample duration&quot;: &quot;1d&quot;,&#xA;    &quot;Station code&quot;: &quot;IT0019R&quot;,&#xA;    &quot;Platform code&quot;: &quot;IT0019S&quot;,&#xA;    &quot;Station name&quot;: &quot;Monte Martano&quot;,&#xA;    &quot;Station land use&quot;: &quot;Grassland&quot;,&#xA;    &quot;Station setting&quot;: &quot;Mountain&quot;,&#xA;    &quot;Station latitude&quot;: &quot;42.805462&quot;,&#xA;    &quot;Station longitude&quot;: &quot;12.565645&quot;,&#xA;    &quot;Station altitude&quot;: &quot;1090.0 m&quot;,&#xA;    &quot;Measurement latitude&quot;: &quot;42.805462&quot;,&#xA;    &quot;Measurement longitude&quot;: &quot;12.565645&quot;,&#xA;    &quot;Measurement height&quot;: &quot;3.2 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Matrix&quot;: &quot;pm10&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;IT15L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;low_vol_sampler&quot;,&#xA;    &quot;Instrument name&quot;: &quot;SWAM_DC&quot;,&#xA;    &quot;Instrument manufacturer&quot;: &quot;FAI Instruments&quot;,&#xA;    &quot;Instrument model&quot;: &quot;SWAM 5A Dual Channel&quot;,&#xA;    &quot;Instrument serial number&quot;: &quot;227&quot;,&#xA;    &quot;Analytical laboratory code&quot;: &quot;IT15L&quot;,&#xA;    &quot;Zero/negative values code&quot;: &quot;Zero/negative impossible&quot;,&#xA;    &quot;Zero/negative values&quot;: &quot;Zero and neg. values may not appear&quot;,&#xA;    &quot;QA1 measure ID&quot;: &quot;EMEP40&quot;,&#xA;    &quot;QA1 date&quot;: &quot;2023-02-28 UTC&quot;,&#xA;    &quot;QA1 document name&quot;: &quot;Summary statistics EMEP laboratory intercalibration Round 40&quot;,&#xA;    &quot;QA1 document date&quot;: &quot;2023-03-01 UTC&quot;,&#xA;    &quot;QA1 document URL&quot;: &quot;http://www.nilu.no/projects/ccc/qameasure/emep40.pdf&quot;,&#xA;    &quot;Organization&quot;: &quot;IT15L, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, , Via Pievaiola 207/B-3, , 06132, Perugia, 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;Vecchiocattivi, Marco, m.vecchiocattivi@arpa.umbria.it, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, Sezione chimica Aria, Via Pievaiola 207/B-3, , 06132, Perugia, Italy&quot;,&#xA;    &quot;Submitter&quot;: &quot;Cappelletti, David, david.cappelletti@unipg.it, University of Perugia, UNIPG, Department of Chemistry Biology and Biotechnology, Via Elce di Sotto 8, , 06123, Perugia, Italy&quot;,&#xA;    &quot;Acknowledgement&quot;: &quot;Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. 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" />
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  <dimension name="time" length="15" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="1" />
  <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="elemental_carbon_amean_qc_flags" length="1" />
  <dimension name="elemental_carbon_uncertainty_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" />
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  <dimension name="Fraction" length="5" />
  <dimension name="organic_carbon_amean_Fraction_qc_flags" length="1" />
  <dimension name="potassium_qc_flags" length="1" />
  <dimension name="sodium_qc_flags" length="1" />
  <dimension name="sulphate_corrected_ug_S_per_m3_qc_flags" length="1" />
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    <attribute name="time_coverage_start" value="2022-01-02T12:00:00Z" />
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    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="172800.0" />
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    <attribute name="ebas_station_longitude" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" value="42.805462" />
    <attribute name="ebas_measurement_longitude" value="12.565645" />
    <attribute name="ebas_measurement_altitude" value="1093.0 m" />
    <attribute name="ebas_measurement_height" value="3.2 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="pm10" />
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    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="SWAM_DC" />
    <attribute name="ebas_instrument_manufacturer" value="FAI Instruments" />
    <attribute name="ebas_instrument_model" value="SWAM 5A Dual Channel" />
    <attribute name="ebas_instrument_serial_number" value="227" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="Dionex_Aquion_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Scientific" />
    <attribute name="ebas_analytical_instrument_model" value="Dionex Aquion" />
    <attribute name="ebas_analytical_instrument_serial_number" value="180745401" />
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    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_volume_std_temperature" value="instrument internal" />
    <attribute name="ebas_volume_std_pressure" value="instrument internal" />
    <attribute name="ebas_detection_limit" value="0.2 ug N/m3" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may not appear" />
    <attribute name="ebas_organization" value="IT15L, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, , Via Pievaiola 207/B-3, , 06132, Perugia, 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="Vecchiocattivi, Marco, m.vecchiocattivi@arpa.umbria.it, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, Sezione chimica Aria, Via Pievaiola 207/B-3, , 06132, Perugia, Italy" />
    <attribute name="ebas_submitter" value="Cappelletti, David, david.cappelletti@unipg.it, University of Perugia, UNIPG, Department of Chemistry Biology and Biotechnology, Via Elce di Sotto 8, , 06123, Perugia, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Nothing" />
  </variable>
  <variable name="ammonium_ug_N_per_m3_qc" shape="ammonium_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="ammonium_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="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_pm10_dry_aerosol_particles_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="20260416102536" />
    <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_station_code" value="IT0019R" />
    <attribute name="ebas_platform_code" value="IT0019S" />
    <attribute name="ebas_station_name" value="Monte Martano" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_latitude" value="42.805462" />
    <attribute name="ebas_station_longitude" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" value="42.805462" />
    <attribute name="ebas_measurement_longitude" value="12.565645" />
    <attribute name="ebas_measurement_altitude" value="1093.0 m" />
    <attribute name="ebas_measurement_height" value="3.2 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="pm10" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="SWAM_DC" />
    <attribute name="ebas_instrument_manufacturer" value="FAI Instruments" />
    <attribute name="ebas_instrument_model" value="SWAM 5A Dual Channel" />
    <attribute name="ebas_instrument_serial_number" value="227" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="Dionex_Aquion_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Scientific" />
    <attribute name="ebas_analytical_instrument_model" value="Dionex Aquion" />
    <attribute name="ebas_analytical_instrument_serial_number" value="180745401" />
    <attribute name="ebas_method_ref" value="IT15L_Dionex_Aquion_1" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_volume_std_temperature" value="instrument internal" />
    <attribute name="ebas_volume_std_pressure" value="instrument internal" />
    <attribute name="ebas_detection_limit" value="0.26 ug/m3" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may not appear" />
    <attribute name="ebas_organization" value="IT15L, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, , Via Pievaiola 207/B-3, , 06132, Perugia, 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="Vecchiocattivi, Marco, m.vecchiocattivi@arpa.umbria.it, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, Sezione chimica Aria, Via Pievaiola 207/B-3, , 06132, Perugia, Italy" />
    <attribute name="ebas_submitter" value="Cappelletti, David, david.cappelletti@unipg.it, University of Perugia, UNIPG, Department of Chemistry Biology and Biotechnology, Via Elce di Sotto 8, , 06123, Perugia, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Nothing -- Data converted on export from EBAS from 'ug N/m3' to 'ug/m3', conversion factor 1.2879. Detection limit converted from '0.2 ug N/m3' to '0.26 ug/m3', conversion factor 1.2879." />
  </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_pm10_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="20260416102536" />
    <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_station_code" value="IT0019R" />
    <attribute name="ebas_platform_code" value="IT0019S" />
    <attribute name="ebas_station_name" value="Monte Martano" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_latitude" value="42.805462" />
    <attribute name="ebas_station_longitude" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" value="42.805462" />
    <attribute name="ebas_measurement_longitude" value="12.565645" />
    <attribute name="ebas_measurement_altitude" value="1093.0 m" />
    <attribute name="ebas_measurement_height" value="3.2 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="pm10" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="SWAM_DC" />
    <attribute name="ebas_instrument_manufacturer" value="FAI Instruments" />
    <attribute name="ebas_instrument_model" value="SWAM 5A Dual Channel" />
    <attribute name="ebas_instrument_serial_number" value="227" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="Dionex_Aquion_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Scientific" />
    <attribute name="ebas_analytical_instrument_model" value="Dionex Aquion" />
    <attribute name="ebas_analytical_instrument_serial_number" value="180745401" />
    <attribute name="ebas_method_ref" value="IT15L_Dionex_Aquion_1" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_volume_std_temperature" value="instrument internal" />
    <attribute name="ebas_volume_std_pressure" value="instrument internal" />
    <attribute name="ebas_detection_limit" value="0.02 ug/m3" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may not appear" />
    <attribute name="ebas_organization" value="IT15L, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, , Via Pievaiola 207/B-3, , 06132, Perugia, 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="Vecchiocattivi, Marco, m.vecchiocattivi@arpa.umbria.it, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, Sezione chimica Aria, Via Pievaiola 207/B-3, , 06132, Perugia, Italy" />
    <attribute name="ebas_submitter" value="Cappelletti, David, david.cappelletti@unipg.it, University of Perugia, UNIPG, Department of Chemistry Biology and Biotechnology, Via Elce di Sotto 8, , 06123, Perugia, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Nothing" />
  </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_pm10_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="20260416102536" />
    <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_station_code" value="IT0019R" />
    <attribute name="ebas_platform_code" value="IT0019S" />
    <attribute name="ebas_station_name" value="Monte Martano" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_latitude" value="42.805462" />
    <attribute name="ebas_station_longitude" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" value="42.805462" />
    <attribute name="ebas_measurement_longitude" value="12.565645" />
    <attribute name="ebas_measurement_altitude" value="1093.0 m" />
    <attribute name="ebas_measurement_height" value="3.2 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="pm10" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="SWAM_DC" />
    <attribute name="ebas_instrument_manufacturer" value="FAI Instruments" />
    <attribute name="ebas_instrument_model" value="SWAM 5A Dual Channel" />
    <attribute name="ebas_instrument_serial_number" value="227" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="ICS-2100_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Dionex" />
    <attribute name="ebas_analytical_instrument_model" value="ICS-2100" />
    <attribute name="ebas_analytical_instrument_serial_number" value="16010281" />
    <attribute name="ebas_method_ref" value="IT15L_Dionex_ICS-2100_1" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_volume_std_temperature" value="instrument internal" />
    <attribute name="ebas_volume_std_pressure" value="instrument internal" />
    <attribute name="ebas_detection_limit" value="0.1 ug/m3" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may not appear" />
    <attribute name="ebas_organization" value="IT15L, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, , Via Pievaiola 207/B-3, , 06132, Perugia, 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="Vecchiocattivi, Marco, m.vecchiocattivi@arpa.umbria.it, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, Sezione chimica Aria, Via Pievaiola 207/B-3, , 06132, Perugia, Italy" />
    <attribute name="ebas_submitter" value="Cappelletti, David, david.cappelletti@unipg.it, University of Perugia, UNIPG, Department of Chemistry Biology and Biotechnology, Via Elce di Sotto 8, , 06123, Perugia, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Nothing" />
  </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="elemental_carbon_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_elemental_carbon_in_pm10_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug C/m3" />
    <attribute name="ancillary_variables" value="elemental_carbon_amean_qc elemental_carbon_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260416102536" />
    <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_station_code" value="IT0019R" />
    <attribute name="ebas_platform_code" value="IT0019S" />
    <attribute name="ebas_station_name" value="Monte Martano" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_latitude" value="42.805462" />
    <attribute name="ebas_station_longitude" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" value="42.805462" />
    <attribute name="ebas_measurement_longitude" value="12.565645" />
    <attribute name="ebas_measurement_altitude" value="1092.0 m" />
    <attribute name="ebas_measurement_height" value="3.2 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="elemental_carbon" />
    <attribute name="ebas_unit" value="ug C/m3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="SWAM_DC" />
    <attribute name="ebas_instrument_manufacturer" value="FAI Instruments" />
    <attribute name="ebas_instrument_model" value="SWAM 5A Dual Channel" />
    <attribute name="ebas_instrument_serial_number" value="227" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
    <attribute name="ebas_analytical_instrument_name" value="Carbon_Aerosol_Analyzer_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
    <attribute name="ebas_analytical_instrument_model" value="Carbon Aerosol Analyzer" />
    <attribute name="ebas_analytical_instrument_serial_number" value="318-113" />
    <attribute name="ebas_method_ref" value="IT15L_Carbon_Aerosol_Analyzer_1" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014, TEMP=EUSAAR_2" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_flow_rate" value="38.33 l/min" />
    <attribute name="ebas_filter_face_velocity" value="90.4 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="7.07 cm2" />
    <attribute name="ebas_filter_description" value="Whatman QM-H 47mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="Not prefired" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_artifact_correction" value="None" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit" value="0.03 ug C/m3" />
    <attribute name="ebas_detection_limit_expl" value="The detection limit is calculated as 3 times the standard deviation of the fieldblanks." />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may not appear" />
    <attribute name="ebas_qa1_measure_id" value="ECAC-OCEC-2023-1" />
    <attribute name="ebas_qa1_date" value="2023-03-31 UTC" />
    <attribute name="ebas_qa1_bias" value="5.5 %" />
    <attribute name="ebas_qa1_variability" value="6.3 %" />
    <attribute name="ebas_qa1_document_name" value="Results of the inter-laboratory comparison exercise for TC and EC measurements (ref.: OCEC-2023-1)" />
    <attribute name="ebas_qa1_document_url" value="https://www.actris-ecac.eu/pluginAppObj/pluginAppObj_299_84/download.php?action=download" />
    <attribute name="ebas_organization" value="IT15L, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, , Via Pievaiola 207/B-3, , 06132, Perugia, 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="Vecchiocattivi, Marco, m.vecchiocattivi@arpa.umbria.it, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, Sezione chimica Aria, Via Pievaiola 207/B-3, , 06132, Perugia, Italy" />
    <attribute name="ebas_submitter" value="Cappelletti, David, david.cappelletti@unipg.it, University of Perugia, UNIPG, Department of Chemistry Biology and Biotechnology, Via Elce di Sotto 8, , 06123, Perugia, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Request acknowledgement details from data originator" />
  </variable>
  <variable name="elemental_carbon_amean_qc" shape="elemental_carbon_amean_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="elemental_carbon_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="elemental_carbon_uncertainty" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_elemental_carbon_in_pm10_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug C/m3" />
    <attribute name="ancillary_variables" value="elemental_carbon_uncertainty_qc elemental_carbon_uncertainty_ebasmetadata" />
    <attribute name="cell_methods" value="time: uncertainty" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260416102536" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="uncertainty" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_station_code" value="IT0019R" />
    <attribute name="ebas_platform_code" value="IT0019S" />
    <attribute name="ebas_station_name" value="Monte Martano" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_latitude" value="42.805462" />
    <attribute name="ebas_station_longitude" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" value="42.805462" />
    <attribute name="ebas_measurement_longitude" value="12.565645" />
    <attribute name="ebas_measurement_altitude" value="1092.0 m" />
    <attribute name="ebas_measurement_height" value="3.2 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="elemental_carbon" />
    <attribute name="ebas_unit" value="ug C/m3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="SWAM_DC" />
    <attribute name="ebas_instrument_manufacturer" value="FAI Instruments" />
    <attribute name="ebas_instrument_model" value="SWAM 5A Dual Channel" />
    <attribute name="ebas_instrument_serial_number" value="227" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
    <attribute name="ebas_analytical_instrument_name" value="Carbon_Aerosol_Analyzer_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
    <attribute name="ebas_analytical_instrument_model" value="Carbon Aerosol Analyzer" />
    <attribute name="ebas_analytical_instrument_serial_number" value="318-113" />
    <attribute name="ebas_method_ref" value="IT15L_Carbon_Aerosol_Analyzer_1" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014, TEMP=EUSAAR_2" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_flow_rate" value="38.33 l/min" />
    <attribute name="ebas_filter_face_velocity" value="90.4 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="7.07 cm2" />
    <attribute name="ebas_filter_description" value="Whatman QM-H 47mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="Not prefired" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_artifact_correction" value="None" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit_expl" value="The detection limit is calculated as 3 times the standard deviation of the fieldblanks." />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may not appear" />
    <attribute name="ebas_qa1_measure_id" value="ECAC-OCEC-2023-1" />
    <attribute name="ebas_qa1_date" value="2023-03-31 UTC" />
    <attribute name="ebas_qa1_document_name" value="Results of the inter-laboratory comparison exercise for TC and EC measurements (ref.: OCEC-2023-1)" />
    <attribute name="ebas_qa1_document_url" value="https://www.actris-ecac.eu/pluginAppObj/pluginAppObj_299_84/download.php?action=download" />
    <attribute name="ebas_organization" value="IT15L, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, , Via Pievaiola 207/B-3, , 06132, Perugia, 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="Vecchiocattivi, Marco, m.vecchiocattivi@arpa.umbria.it, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, Sezione chimica Aria, Via Pievaiola 207/B-3, , 06132, Perugia, Italy" />
    <attribute name="ebas_submitter" value="Cappelletti, David, david.cappelletti@unipg.it, University of Perugia, UNIPG, Department of Chemistry Biology and Biotechnology, Via Elce di Sotto 8, , 06123, Perugia, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Request acknowledgement details from data originator" />
  </variable>
  <variable name="elemental_carbon_uncertainty_qc" shape="elemental_carbon_uncertainty_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="elemental_carbon_uncertainty_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_pm10_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="20260416102536" />
    <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_station_code" value="IT0019R" />
    <attribute name="ebas_platform_code" value="IT0019S" />
    <attribute name="ebas_station_name" value="Monte Martano" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_latitude" value="42.805462" />
    <attribute name="ebas_station_longitude" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" value="42.805462" />
    <attribute name="ebas_measurement_longitude" value="12.565645" />
    <attribute name="ebas_measurement_altitude" value="1093.0 m" />
    <attribute name="ebas_measurement_height" value="3.2 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="pm10" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="SWAM_DC" />
    <attribute name="ebas_instrument_manufacturer" value="FAI Instruments" />
    <attribute name="ebas_instrument_model" value="SWAM 5A Dual Channel" />
    <attribute name="ebas_instrument_serial_number" value="227" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="Dionex_Aquion_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Scientific" />
    <attribute name="ebas_analytical_instrument_model" value="Dionex Aquion" />
    <attribute name="ebas_analytical_instrument_serial_number" value="180745401" />
    <attribute name="ebas_method_ref" value="IT15L_Dionex_Aquion_1" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_volume_std_temperature" value="instrument internal" />
    <attribute name="ebas_volume_std_pressure" value="instrument internal" />
    <attribute name="ebas_detection_limit" value="0.01 ug/m3" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may not appear" />
    <attribute name="ebas_organization" value="IT15L, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, , Via Pievaiola 207/B-3, , 06132, Perugia, 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="Vecchiocattivi, Marco, m.vecchiocattivi@arpa.umbria.it, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, Sezione chimica Aria, Via Pievaiola 207/B-3, , 06132, Perugia, Italy" />
    <attribute name="ebas_submitter" value="Cappelletti, David, david.cappelletti@unipg.it, University of Perugia, UNIPG, Department of Chemistry Biology and Biotechnology, Via Elce di Sotto 8, , 06123, Perugia, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Nothing" />
  </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_expressed_as_nitrogen_in_pm10_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/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="20260416102536" />
    <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_station_code" value="IT0019R" />
    <attribute name="ebas_platform_code" value="IT0019S" />
    <attribute name="ebas_station_name" value="Monte Martano" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_latitude" value="42.805462" />
    <attribute name="ebas_station_longitude" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" value="42.805462" />
    <attribute name="ebas_measurement_longitude" value="12.565645" />
    <attribute name="ebas_measurement_altitude" value="1093.0 m" />
    <attribute name="ebas_measurement_height" value="3.2 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="pm10" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="SWAM_DC" />
    <attribute name="ebas_instrument_manufacturer" value="FAI Instruments" />
    <attribute name="ebas_instrument_model" value="SWAM 5A Dual Channel" />
    <attribute name="ebas_instrument_serial_number" value="227" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="ICS-2100_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Dionex" />
    <attribute name="ebas_analytical_instrument_model" value="ICS-2100" />
    <attribute name="ebas_analytical_instrument_serial_number" value="16010281" />
    <attribute name="ebas_method_ref" value="IT15L_Dionex_ICS-2100_1" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_volume_std_temperature" value="instrument internal" />
    <attribute name="ebas_volume_std_pressure" value="instrument internal" />
    <attribute name="ebas_detection_limit" value="0.02 ug N/m3" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may not appear" />
    <attribute name="ebas_organization" value="IT15L, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, , Via Pievaiola 207/B-3, , 06132, Perugia, 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="Vecchiocattivi, Marco, m.vecchiocattivi@arpa.umbria.it, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, Sezione chimica Aria, Via Pievaiola 207/B-3, , 06132, Perugia, Italy" />
    <attribute name="ebas_submitter" value="Cappelletti, David, david.cappelletti@unipg.it, University of Perugia, UNIPG, Department of Chemistry Biology and Biotechnology, Via Elce di Sotto 8, , 06123, Perugia, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Nothing" />
  </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_pm10_dry_aerosol_particles_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="20260416102536" />
    <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_station_code" value="IT0019R" />
    <attribute name="ebas_platform_code" value="IT0019S" />
    <attribute name="ebas_station_name" value="Monte Martano" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_latitude" value="42.805462" />
    <attribute name="ebas_station_longitude" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" value="42.805462" />
    <attribute name="ebas_measurement_longitude" value="12.565645" />
    <attribute name="ebas_measurement_altitude" value="1093.0 m" />
    <attribute name="ebas_measurement_height" value="3.2 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="pm10" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="SWAM_DC" />
    <attribute name="ebas_instrument_manufacturer" value="FAI Instruments" />
    <attribute name="ebas_instrument_model" value="SWAM 5A Dual Channel" />
    <attribute name="ebas_instrument_serial_number" value="227" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="ICS-2100_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Dionex" />
    <attribute name="ebas_analytical_instrument_model" value="ICS-2100" />
    <attribute name="ebas_analytical_instrument_serial_number" value="16010281" />
    <attribute name="ebas_method_ref" value="IT15L_Dionex_ICS-2100_1" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_volume_std_temperature" value="instrument internal" />
    <attribute name="ebas_volume_std_pressure" value="instrument internal" />
    <attribute name="ebas_detection_limit" value="0.09 ug/m3" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may not appear" />
    <attribute name="ebas_organization" value="IT15L, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, , Via Pievaiola 207/B-3, , 06132, Perugia, 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="Vecchiocattivi, Marco, m.vecchiocattivi@arpa.umbria.it, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, Sezione chimica Aria, Via Pievaiola 207/B-3, , 06132, Perugia, Italy" />
    <attribute name="ebas_submitter" value="Cappelletti, David, david.cappelletti@unipg.it, University of Perugia, UNIPG, Department of Chemistry Biology and Biotechnology, Via Elce di Sotto 8, , 06123, Perugia, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Nothing -- Data converted on export from EBAS from 'ug N/m3' to 'ug/m3', conversion factor 4.4267. Detection limit converted from '0.02 ug N/m3' to '0.09 ug/m3', conversion factor 4.4267." />
  </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="organic_carbon_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_organic_carbon_in_pm10_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug C/m3" />
    <attribute name="ancillary_variables" value="organic_carbon_amean_qc organic_carbon_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260416102536" />
    <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_station_code" value="IT0019R" />
    <attribute name="ebas_platform_code" value="IT0019S" />
    <attribute name="ebas_station_name" value="Monte Martano" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_latitude" value="42.805462" />
    <attribute name="ebas_station_longitude" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" value="42.805462" />
    <attribute name="ebas_measurement_longitude" value="12.565645" />
    <attribute name="ebas_measurement_altitude" value="1092.0 m" />
    <attribute name="ebas_measurement_height" value="3.2 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="organic_carbon" />
    <attribute name="ebas_unit" value="ug C/m3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="SWAM_DC" />
    <attribute name="ebas_instrument_manufacturer" value="FAI Instruments" />
    <attribute name="ebas_instrument_model" value="SWAM 5A Dual Channel" />
    <attribute name="ebas_instrument_serial_number" value="227" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
    <attribute name="ebas_analytical_instrument_name" value="Carbon_Aerosol_Analyzer_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
    <attribute name="ebas_analytical_instrument_model" value="Carbon Aerosol Analyzer" />
    <attribute name="ebas_analytical_instrument_serial_number" value="318-113" />
    <attribute name="ebas_method_ref" value="IT15L_Carbon_Aerosol_Analyzer_1" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014, TEMP=EUSAAR_2" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_flow_rate" value="38.33 l/min" />
    <attribute name="ebas_filter_face_velocity" value="90.4 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="7.07 cm2" />
    <attribute name="ebas_filter_description" value="Whatman QM-H 47mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="Not prefired" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_artifact_correction" value="None" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit" value="0.5 ug C/m3" />
    <attribute name="ebas_detection_limit_expl" value="The detection limit is calculated as 3 times the standard deviation of the fieldblanks." />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may not appear" />
    <attribute name="ebas_qa1_measure_id" value="ECAC-OCEC-2023-1" />
    <attribute name="ebas_qa1_date" value="2023-03-31 UTC" />
    <attribute name="ebas_qa1_bias" value="-7.6 %" />
    <attribute name="ebas_qa1_variability" value="8.6 %" />
    <attribute name="ebas_qa1_document_name" value="Results of the inter-laboratory comparison exercise for TC and EC measurements (ref.: OCEC-2023-1)" />
    <attribute name="ebas_qa1_document_url" value="https://www.actris-ecac.eu/pluginAppObj/pluginAppObj_299_84/download.php?action=download" />
    <attribute name="ebas_organization" value="IT15L, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, , Via Pievaiola 207/B-3, , 06132, Perugia, 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="Vecchiocattivi, Marco, m.vecchiocattivi@arpa.umbria.it, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, Sezione chimica Aria, Via Pievaiola 207/B-3, , 06132, Perugia, Italy" />
    <attribute name="ebas_submitter" value="Cappelletti, David, david.cappelletti@unipg.it, University of Perugia, UNIPG, Department of Chemistry Biology and Biotechnology, Via Elce di Sotto 8, , 06123, Perugia, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Request acknowledgement details from data originator" />
  </variable>
  <variable name="organic_carbon_amean_qc" shape="organic_carbon_amean_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="organic_carbon_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="organic_carbon_uncertainty" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_organic_carbon_in_pm10_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug C/m3" />
    <attribute name="ancillary_variables" value="organic_carbon_uncertainty_qc organic_carbon_uncertainty_ebasmetadata" />
    <attribute name="cell_methods" value="time: uncertainty" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260416102536" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="uncertainty" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_station_code" value="IT0019R" />
    <attribute name="ebas_platform_code" value="IT0019S" />
    <attribute name="ebas_station_name" value="Monte Martano" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_latitude" value="42.805462" />
    <attribute name="ebas_station_longitude" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" value="42.805462" />
    <attribute name="ebas_measurement_longitude" value="12.565645" />
    <attribute name="ebas_measurement_altitude" value="1092.0 m" />
    <attribute name="ebas_measurement_height" value="3.2 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="organic_carbon" />
    <attribute name="ebas_unit" value="ug C/m3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="SWAM_DC" />
    <attribute name="ebas_instrument_manufacturer" value="FAI Instruments" />
    <attribute name="ebas_instrument_model" value="SWAM 5A Dual Channel" />
    <attribute name="ebas_instrument_serial_number" value="227" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
    <attribute name="ebas_analytical_instrument_name" value="Carbon_Aerosol_Analyzer_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
    <attribute name="ebas_analytical_instrument_model" value="Carbon Aerosol Analyzer" />
    <attribute name="ebas_analytical_instrument_serial_number" value="318-113" />
    <attribute name="ebas_method_ref" value="IT15L_Carbon_Aerosol_Analyzer_1" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014, TEMP=EUSAAR_2" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_flow_rate" value="38.33 l/min" />
    <attribute name="ebas_filter_face_velocity" value="90.4 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="7.07 cm2" />
    <attribute name="ebas_filter_description" value="Whatman QM-H 47mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="Not prefired" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_artifact_correction" value="None" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit_expl" value="The detection limit is calculated as 3 times the standard deviation of the fieldblanks." />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may not appear" />
    <attribute name="ebas_qa1_measure_id" value="ECAC-OCEC-2023-1" />
    <attribute name="ebas_qa1_date" value="2023-03-31 UTC" />
    <attribute name="ebas_qa1_document_name" value="Results of the inter-laboratory comparison exercise for TC and EC measurements (ref.: OCEC-2023-1)" />
    <attribute name="ebas_qa1_document_url" value="https://www.actris-ecac.eu/pluginAppObj/pluginAppObj_299_84/download.php?action=download" />
    <attribute name="ebas_organization" value="IT15L, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, , Via Pievaiola 207/B-3, , 06132, Perugia, 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="Vecchiocattivi, Marco, m.vecchiocattivi@arpa.umbria.it, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, Sezione chimica Aria, Via Pievaiola 207/B-3, , 06132, Perugia, Italy" />
    <attribute name="ebas_submitter" value="Cappelletti, David, david.cappelletti@unipg.it, University of Perugia, UNIPG, Department of Chemistry Biology and Biotechnology, Via Elce di Sotto 8, , 06123, Perugia, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Request acknowledgement details from data originator" />
  </variable>
  <variable name="organic_carbon_uncertainty_qc" shape="organic_carbon_uncertainty_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="organic_carbon_uncertainty_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="organic_carbon_amean_Fraction" shape="Fraction time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_organic_carbon_in_pm10_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug C/m3" />
    <attribute name="ancillary_variables" value="organic_carbon_amean_Fraction_qc organic_carbon_amean_Fraction_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="20260416102536" />
    <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_station_code" value="IT0019R" />
    <attribute name="ebas_platform_code" value="IT0019S" />
    <attribute name="ebas_station_name" value="Monte Martano" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_latitude" value="42.805462" />
    <attribute name="ebas_station_longitude" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" value="42.805462" />
    <attribute name="ebas_measurement_longitude" value="12.565645" />
    <attribute name="ebas_measurement_altitude" value="1092.0 m" />
    <attribute name="ebas_measurement_height" value="3.2 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="organic_carbon" />
    <attribute name="ebas_unit" value="ug C/m3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="SWAM_DC" />
    <attribute name="ebas_instrument_manufacturer" value="FAI Instruments" />
    <attribute name="ebas_instrument_model" value="SWAM 5A Dual Channel" />
    <attribute name="ebas_instrument_serial_number" value="227" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
    <attribute name="ebas_analytical_instrument_name" value="Carbon_Aerosol_Analyzer_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
    <attribute name="ebas_analytical_instrument_model" value="Carbon Aerosol Analyzer" />
    <attribute name="ebas_analytical_instrument_serial_number" value="318-113" />
    <attribute name="ebas_method_ref" value="IT15L_Carbon_Aerosol_Analyzer_1" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014, TEMP=EUSAAR_2" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_flow_rate" value="38.33 l/min" />
    <attribute name="ebas_filter_face_velocity" value="90.4 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="7.07 cm2" />
    <attribute name="ebas_filter_description" value="Whatman QM-H 47mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="Not prefired" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_artifact_correction" value="None" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit_expl" value="The detection limit is calculated as 3 times the standard deviation of the fieldblanks." />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may not appear" />
    <attribute name="ebas_qa1_measure_id" value="ECAC-OCEC-2023-1" />
    <attribute name="ebas_qa1_date" value="2023-03-31 UTC" />
    <attribute name="ebas_qa1_document_name" value="Results of the inter-laboratory comparison exercise for TC and EC measurements (ref.: OCEC-2023-1)" />
    <attribute name="ebas_qa1_document_url" value="https://www.actris-ecac.eu/pluginAppObj/pluginAppObj_299_84/download.php?action=download" />
    <attribute name="ebas_organization" value="IT15L, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, , Via Pievaiola 207/B-3, , 06132, Perugia, 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="Vecchiocattivi, Marco, m.vecchiocattivi@arpa.umbria.it, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, Sezione chimica Aria, Via Pievaiola 207/B-3, , 06132, Perugia, Italy" />
    <attribute name="ebas_submitter" value="Cappelletti, David, david.cappelletti@unipg.it, University of Perugia, UNIPG, Department of Chemistry Biology and Biotechnology, Via Elce di Sotto 8, , 06123, Perugia, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Request acknowledgement details from data originator" />
  </variable>
  <variable name="organic_carbon_amean_Fraction_qc" shape="Fraction organic_carbon_amean_Fraction_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="organic_carbon_amean_Fraction_ebasmetadata" shape="Fraction 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_pm10_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="20260416102536" />
    <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_station_code" value="IT0019R" />
    <attribute name="ebas_platform_code" value="IT0019S" />
    <attribute name="ebas_station_name" value="Monte Martano" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_latitude" value="42.805462" />
    <attribute name="ebas_station_longitude" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" value="42.805462" />
    <attribute name="ebas_measurement_longitude" value="12.565645" />
    <attribute name="ebas_measurement_altitude" value="1093.0 m" />
    <attribute name="ebas_measurement_height" value="3.2 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="pm10" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="SWAM_DC" />
    <attribute name="ebas_instrument_manufacturer" value="FAI Instruments" />
    <attribute name="ebas_instrument_model" value="SWAM 5A Dual Channel" />
    <attribute name="ebas_instrument_serial_number" value="227" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="Dionex_Aquion_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Scientific" />
    <attribute name="ebas_analytical_instrument_model" value="Dionex Aquion" />
    <attribute name="ebas_analytical_instrument_serial_number" value="180745401" />
    <attribute name="ebas_method_ref" value="IT15L_Dionex_Aquion_1" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_volume_std_temperature" value="instrument internal" />
    <attribute name="ebas_volume_std_pressure" value="instrument internal" />
    <attribute name="ebas_detection_limit" value="0.01 ug/m3" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may not appear" />
    <attribute name="ebas_organization" value="IT15L, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, , Via Pievaiola 207/B-3, , 06132, Perugia, 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="Vecchiocattivi, Marco, m.vecchiocattivi@arpa.umbria.it, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, Sezione chimica Aria, Via Pievaiola 207/B-3, , 06132, Perugia, Italy" />
    <attribute name="ebas_submitter" value="Cappelletti, David, david.cappelletti@unipg.it, University of Perugia, UNIPG, Department of Chemistry Biology and Biotechnology, Via Elce di Sotto 8, , 06123, Perugia, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Nothing" />
  </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_pm10_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="20260416102536" />
    <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_station_code" value="IT0019R" />
    <attribute name="ebas_platform_code" value="IT0019S" />
    <attribute name="ebas_station_name" value="Monte Martano" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_latitude" value="42.805462" />
    <attribute name="ebas_station_longitude" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" value="42.805462" />
    <attribute name="ebas_measurement_longitude" value="12.565645" />
    <attribute name="ebas_measurement_altitude" value="1093.0 m" />
    <attribute name="ebas_measurement_height" value="3.2 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="pm10" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="SWAM_DC" />
    <attribute name="ebas_instrument_manufacturer" value="FAI Instruments" />
    <attribute name="ebas_instrument_model" value="SWAM 5A Dual Channel" />
    <attribute name="ebas_instrument_serial_number" value="227" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="Dionex_Aquion_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Scientific" />
    <attribute name="ebas_analytical_instrument_model" value="Dionex Aquion" />
    <attribute name="ebas_analytical_instrument_serial_number" value="180745401" />
    <attribute name="ebas_method_ref" value="IT15L_Dionex_Aquion_1" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_volume_std_temperature" value="instrument internal" />
    <attribute name="ebas_volume_std_pressure" value="instrument internal" />
    <attribute name="ebas_detection_limit" value="0.01 ug/m3" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may not appear" />
    <attribute name="ebas_organization" value="IT15L, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, , Via Pievaiola 207/B-3, , 06132, Perugia, 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="Vecchiocattivi, Marco, m.vecchiocattivi@arpa.umbria.it, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, Sezione chimica Aria, Via Pievaiola 207/B-3, , 06132, Perugia, Italy" />
    <attribute name="ebas_submitter" value="Cappelletti, David, david.cappelletti@unipg.it, University of Perugia, UNIPG, Department of Chemistry Biology and Biotechnology, Via Elce di Sotto 8, , 06123, Perugia, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Nothing" />
  </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_corrected_ug_S_per_m3" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_sulphate_corrected_for_seaspray_expressed_as_sulphur_in_pm10_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="sulphate_corrected_ug S_per_m3_qc sulphate_corrected_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="20260416102536" />
    <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_station_code" value="IT0019R" />
    <attribute name="ebas_platform_code" value="IT0019S" />
    <attribute name="ebas_station_name" value="Monte Martano" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_latitude" value="42.805462" />
    <attribute name="ebas_station_longitude" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" value="42.805462" />
    <attribute name="ebas_measurement_longitude" value="12.565645" />
    <attribute name="ebas_measurement_altitude" value="1093.0 m" />
    <attribute name="ebas_measurement_height" value="3.2 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="sulphate_corrected" />
    <attribute name="ebas_unit" value="ug S/m3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="SWAM_DC" />
    <attribute name="ebas_instrument_manufacturer" value="FAI Instruments" />
    <attribute name="ebas_instrument_model" value="SWAM 5A Dual Channel" />
    <attribute name="ebas_instrument_serial_number" value="227" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="ICS-2100_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Dionex" />
    <attribute name="ebas_analytical_instrument_model" value="ICS-2100" />
    <attribute name="ebas_analytical_instrument_serial_number" value="16010281" />
    <attribute name="ebas_method_ref" value="IT15L_Dionex_ICS-2100_1" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_volume_std_temperature" value="instrument internal" />
    <attribute name="ebas_volume_std_pressure" value="instrument internal" />
    <attribute name="ebas_detection_limit" value="0.03 ug S/m3" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may not appear" />
    <attribute name="ebas_organization" value="IT15L, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, , Via Pievaiola 207/B-3, , 06132, Perugia, 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="Vecchiocattivi, Marco, m.vecchiocattivi@arpa.umbria.it, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, Sezione chimica Aria, Via Pievaiola 207/B-3, , 06132, Perugia, Italy" />
    <attribute name="ebas_submitter" value="Cappelletti, David, david.cappelletti@unipg.it, University of Perugia, UNIPG, Department of Chemistry Biology and Biotechnology, Via Elce di Sotto 8, , 06123, Perugia, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Nothing" />
  </variable>
  <variable name="sulphate_corrected_ug_S_per_m3_qc" shape="sulphate_corrected_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_corrected_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_corrected_ug_per_m3" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_sulphate_corrected_for_seaspray_in_pm10_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="sulphate_corrected_ug_per_m3_qc sulphate_corrected_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="20260416102536" />
    <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_station_code" value="IT0019R" />
    <attribute name="ebas_platform_code" value="IT0019S" />
    <attribute name="ebas_station_name" value="Monte Martano" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_latitude" value="42.805462" />
    <attribute name="ebas_station_longitude" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" value="42.805462" />
    <attribute name="ebas_measurement_longitude" value="12.565645" />
    <attribute name="ebas_measurement_altitude" value="1093.0 m" />
    <attribute name="ebas_measurement_height" value="3.2 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="sulphate_corrected" />
    <attribute name="ebas_unit" value="ug/m3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="SWAM_DC" />
    <attribute name="ebas_instrument_manufacturer" value="FAI Instruments" />
    <attribute name="ebas_instrument_model" value="SWAM 5A Dual Channel" />
    <attribute name="ebas_instrument_serial_number" value="227" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="ICS-2100_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Dionex" />
    <attribute name="ebas_analytical_instrument_model" value="ICS-2100" />
    <attribute name="ebas_analytical_instrument_serial_number" value="16010281" />
    <attribute name="ebas_method_ref" value="IT15L_Dionex_ICS-2100_1" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_volume_std_temperature" value="instrument internal" />
    <attribute name="ebas_volume_std_pressure" value="instrument internal" />
    <attribute name="ebas_detection_limit" value="0.09 ug/m3" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may not appear" />
    <attribute name="ebas_organization" value="IT15L, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, , Via Pievaiola 207/B-3, , 06132, Perugia, 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="Vecchiocattivi, Marco, m.vecchiocattivi@arpa.umbria.it, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, Sezione chimica Aria, Via Pievaiola 207/B-3, , 06132, Perugia, Italy" />
    <attribute name="ebas_submitter" value="Cappelletti, David, david.cappelletti@unipg.it, University of Perugia, UNIPG, Department of Chemistry Biology and Biotechnology, Via Elce di Sotto 8, , 06123, Perugia, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Nothing -- Data converted on export from EBAS from 'ug S/m3' to 'ug/m3', conversion factor 2.9962. Detection limit converted from '0.03 ug S/m3' to '0.09 ug/m3', conversion factor 2.9962." />
  </variable>
  <variable name="sulphate_corrected_ug_per_m3_qc" shape="sulphate_corrected_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_corrected_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="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_expressed_as_sulphur_in_pm10_dry_aerosol_particles_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/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="20260416102536" />
    <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_station_code" value="IT0019R" />
    <attribute name="ebas_platform_code" value="IT0019S" />
    <attribute name="ebas_station_name" value="Monte Martano" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_latitude" value="42.805462" />
    <attribute name="ebas_station_longitude" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" value="42.805462" />
    <attribute name="ebas_measurement_longitude" value="12.565645" />
    <attribute name="ebas_measurement_altitude" value="1093.0 m" />
    <attribute name="ebas_measurement_height" value="3.2 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="pm10" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="SWAM_DC" />
    <attribute name="ebas_instrument_manufacturer" value="FAI Instruments" />
    <attribute name="ebas_instrument_model" value="SWAM 5A Dual Channel" />
    <attribute name="ebas_instrument_serial_number" value="227" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="ICS-2100_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Dionex" />
    <attribute name="ebas_analytical_instrument_model" value="ICS-2100" />
    <attribute name="ebas_analytical_instrument_serial_number" value="16010281" />
    <attribute name="ebas_method_ref" value="IT15L_Dionex_ICS-2100_1" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_volume_std_temperature" value="instrument internal" />
    <attribute name="ebas_volume_std_pressure" value="instrument internal" />
    <attribute name="ebas_detection_limit" value="0.03 ug S/m3" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may not appear" />
    <attribute name="ebas_organization" value="IT15L, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, , Via Pievaiola 207/B-3, , 06132, Perugia, 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="Vecchiocattivi, Marco, m.vecchiocattivi@arpa.umbria.it, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, Sezione chimica Aria, Via Pievaiola 207/B-3, , 06132, Perugia, Italy" />
    <attribute name="ebas_submitter" value="Cappelletti, David, david.cappelletti@unipg.it, University of Perugia, UNIPG, Department of Chemistry Biology and Biotechnology, Via Elce di Sotto 8, , 06123, Perugia, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Nothing" />
  </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_in_pm10_dry_aerosol_particles_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="20260416102536" />
    <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_station_code" value="IT0019R" />
    <attribute name="ebas_platform_code" value="IT0019S" />
    <attribute name="ebas_station_name" value="Monte Martano" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_latitude" value="42.805462" />
    <attribute name="ebas_station_longitude" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" value="42.805462" />
    <attribute name="ebas_measurement_longitude" value="12.565645" />
    <attribute name="ebas_measurement_altitude" value="1093.0 m" />
    <attribute name="ebas_measurement_height" value="3.2 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="pm10" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="SWAM_DC" />
    <attribute name="ebas_instrument_manufacturer" value="FAI Instruments" />
    <attribute name="ebas_instrument_model" value="SWAM 5A Dual Channel" />
    <attribute name="ebas_instrument_serial_number" value="227" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="ICS-2100_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Dionex" />
    <attribute name="ebas_analytical_instrument_model" value="ICS-2100" />
    <attribute name="ebas_analytical_instrument_serial_number" value="16010281" />
    <attribute name="ebas_method_ref" value="IT15L_Dionex_ICS-2100_1" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_volume_std_temperature" value="instrument internal" />
    <attribute name="ebas_volume_std_pressure" value="instrument internal" />
    <attribute name="ebas_detection_limit" value="0.09 ug/m3" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may not appear" />
    <attribute name="ebas_organization" value="IT15L, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, , Via Pievaiola 207/B-3, , 06132, Perugia, 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="Vecchiocattivi, Marco, m.vecchiocattivi@arpa.umbria.it, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, Sezione chimica Aria, Via Pievaiola 207/B-3, , 06132, Perugia, Italy" />
    <attribute name="ebas_submitter" value="Cappelletti, David, david.cappelletti@unipg.it, University of Perugia, UNIPG, Department of Chemistry Biology and Biotechnology, Via Elce di Sotto 8, , 06123, Perugia, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Request acknowledgement details from data originator" />
    <attribute name="ebas_comment" value="Nothing -- Data converted on export from EBAS from 'ug S/m3' to 'ug/m3', conversion factor 2.9962. Detection limit converted from '0.03 ug S/m3' to '0.09 ug/m3', conversion factor 2.9962." />
  </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="total_carbon_amean" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_total_carbon_in_pm10_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug C/m3" />
    <attribute name="ancillary_variables" value="total_carbon_amean_qc total_carbon_amean_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260416102536" />
    <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_station_code" value="IT0019R" />
    <attribute name="ebas_platform_code" value="IT0019S" />
    <attribute name="ebas_station_name" value="Monte Martano" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_latitude" value="42.805462" />
    <attribute name="ebas_station_longitude" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" value="42.805462" />
    <attribute name="ebas_measurement_longitude" value="12.565645" />
    <attribute name="ebas_measurement_altitude" value="1092.0 m" />
    <attribute name="ebas_measurement_height" value="3.2 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="total_carbon" />
    <attribute name="ebas_unit" value="ug C/m3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="SWAM_DC" />
    <attribute name="ebas_instrument_manufacturer" value="FAI Instruments" />
    <attribute name="ebas_instrument_model" value="SWAM 5A Dual Channel" />
    <attribute name="ebas_instrument_serial_number" value="227" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
    <attribute name="ebas_analytical_instrument_name" value="Carbon_Aerosol_Analyzer_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
    <attribute name="ebas_analytical_instrument_model" value="Carbon Aerosol Analyzer" />
    <attribute name="ebas_analytical_instrument_serial_number" value="318-113" />
    <attribute name="ebas_method_ref" value="IT15L_Carbon_Aerosol_Analyzer_1" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014, TEMP=EUSAAR_2" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_flow_rate" value="38.33 l/min" />
    <attribute name="ebas_filter_face_velocity" value="90.4 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="7.07 cm2" />
    <attribute name="ebas_filter_description" value="Whatman QM-H 47mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="Not prefired" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_artifact_correction" value="None" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit" value="0.5 ug C/m3" />
    <attribute name="ebas_detection_limit_expl" value="The detection limit is calculated as 3 times the standard deviation of the fieldblanks." />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may not appear" />
    <attribute name="ebas_qa1_measure_id" value="ECAC-OCEC-2023-1" />
    <attribute name="ebas_qa1_date" value="2023-03-31 UTC" />
    <attribute name="ebas_qa1_bias" value="-5.3 %" />
    <attribute name="ebas_qa1_variability" value="8.2 %" />
    <attribute name="ebas_qa1_document_name" value="Results of the inter-laboratory comparison exercise for TC and EC measurements (ref.: OCEC-2023-1)" />
    <attribute name="ebas_qa1_document_url" value="https://www.actris-ecac.eu/pluginAppObj/pluginAppObj_299_84/download.php?action=download" />
    <attribute name="ebas_organization" value="IT15L, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, , Via Pievaiola 207/B-3, , 06132, Perugia, 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="Vecchiocattivi, Marco, m.vecchiocattivi@arpa.umbria.it, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, Sezione chimica Aria, Via Pievaiola 207/B-3, , 06132, Perugia, Italy" />
    <attribute name="ebas_submitter" value="Cappelletti, David, david.cappelletti@unipg.it, University of Perugia, UNIPG, Department of Chemistry Biology and Biotechnology, Via Elce di Sotto 8, , 06123, Perugia, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Request acknowledgement details from data originator" />
  </variable>
  <variable name="total_carbon_amean_qc" shape="total_carbon_amean_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="total_carbon_amean_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="total_carbon_uncertainty" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_total_carbon_in_pm10_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug C/m3" />
    <attribute name="ancillary_variables" value="total_carbon_uncertainty_qc total_carbon_uncertainty_ebasmetadata" />
    <attribute name="cell_methods" value="time: uncertainty" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260416102536" />
    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
    <attribute name="ebas_statistics" value="uncertainty" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_station_code" value="IT0019R" />
    <attribute name="ebas_platform_code" value="IT0019S" />
    <attribute name="ebas_station_name" value="Monte Martano" />
    <attribute name="ebas_station_land_use" value="Grassland" />
    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_latitude" value="42.805462" />
    <attribute name="ebas_station_longitude" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" value="42.805462" />
    <attribute name="ebas_measurement_longitude" value="12.565645" />
    <attribute name="ebas_measurement_altitude" value="1092.0 m" />
    <attribute name="ebas_measurement_height" value="3.2 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="total_carbon" />
    <attribute name="ebas_unit" value="ug C/m3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="SWAM_DC" />
    <attribute name="ebas_instrument_manufacturer" value="FAI Instruments" />
    <attribute name="ebas_instrument_model" value="SWAM 5A Dual Channel" />
    <attribute name="ebas_instrument_serial_number" value="227" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="thermal-optical_analysis" />
    <attribute name="ebas_analytical_instrument_name" value="Carbon_Aerosol_Analyzer_1" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Sunset Laboratory" />
    <attribute name="ebas_analytical_instrument_model" value="Carbon Aerosol Analyzer" />
    <attribute name="ebas_analytical_instrument_serial_number" value="318-113" />
    <attribute name="ebas_method_ref" value="IT15L_Carbon_Aerosol_Analyzer_1" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014, TEMP=EUSAAR_2" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_flow_rate" value="38.33 l/min" />
    <attribute name="ebas_filter_face_velocity" value="90.4 cm/s" />
    <attribute name="ebas_exposed_filter_area" value="7.07 cm2" />
    <attribute name="ebas_filter_description" value="Whatman QM-H 47mm" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_filter_prefiring" value="Not prefired" />
    <attribute name="ebas_filter_conditioning" value="None" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_artifact_correction" value="None" />
    <attribute name="ebas_charring_correction" value="By laser transmission" />
    <attribute name="ebas_volume_std_temperature" value="ambient" />
    <attribute name="ebas_volume_std_pressure" value="ambient" />
    <attribute name="ebas_detection_limit_expl" value="The detection limit is calculated as 3 times the standard deviation of the fieldblanks." />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative impossible" />
    <attribute name="ebas_zero_negative_values" value="Zero and neg. values may not appear" />
    <attribute name="ebas_qa1_measure_id" value="ECAC-OCEC-2023-1" />
    <attribute name="ebas_qa1_date" value="2023-03-31 UTC" />
    <attribute name="ebas_qa1_document_name" value="Results of the inter-laboratory comparison exercise for TC and EC measurements (ref.: OCEC-2023-1)" />
    <attribute name="ebas_qa1_document_url" value="https://www.actris-ecac.eu/pluginAppObj/pluginAppObj_299_84/download.php?action=download" />
    <attribute name="ebas_organization" value="IT15L, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, , Via Pievaiola 207/B-3, , 06132, Perugia, 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="Vecchiocattivi, Marco, m.vecchiocattivi@arpa.umbria.it, Arpa Umbria - Umbria Regional Agency for Environmental Protection, ARPA-Umbria, Sezione chimica Aria, Via Pievaiola 207/B-3, , 06132, Perugia, Italy" />
    <attribute name="ebas_submitter" value="Cappelletti, David, david.cappelletti@unipg.it, University of Perugia, UNIPG, Department of Chemistry Biology and Biotechnology, Via Elce di Sotto 8, , 06123, Perugia, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Request acknowledgement details from data originator" />
  </variable>
  <variable name="total_carbon_uncertainty_qc" shape="total_carbon_uncertainty_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="total_carbon_uncertainty_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>
  <variable name="Fraction" shape="Fraction" type="String" />
</netcdf>
