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  <attribute name="title" value="Heavy metals at Monte Martano" />
  <attribute name="summary" value="Heavy metals 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: ['aluminium in pm25 (mass_concentration_of_aluminium_in_pm2p5_in_air)', 'antimony in pm25 (mass_concentration_of_antimony_in_pm2p5_in_air)', 'arsenic in pm25 (mass_concentration_of_arsenic_in_pm2p5_in_air)', 'barium in pm25 (mass_concentration_of_barium_in_pm2p5_in_air)', 'cadmium in pm25 (mass_concentration_of_cadmium_in_pm2p5_in_air)', 'chromium in pm25 (mass_concentration_of_chromium_in_pm2p5_in_air)', 'cobalt in pm25 (mass_concentration_of_cobalt_in_pm2p5_in_air)', 'copper in pm25 (mass_concentration_of_copper_in_pm2p5_in_air)', 'iron in pm25 (mass_concentration_of_iron_in_pm2p5_in_air)', 'lanthanum in pm25 (mass_concentration_of_lanthanum_in_pm2p5_in_air)', 'lead in pm25 (mass_concentration_of_lead_in_pm2p5_in_air)', 'manganese in pm25 (mass_concentration_of_manganese_in_pm2p5_in_air)', 'molybdenum in pm25 (mass_concentration_of_molybdenum_in_pm2p5_in_air)', 'nickel in pm25 (mass_concentration_of_nickel_in_pm2p5_in_air)', 'strontium in pm25 (mass_concentration_of_strontium_in_pm2p5_in_air)', 'titanium in pm25 (mass_concentration_of_titanium_in_pm2p5_in_air)', 'vanadium in pm25 (mass_concentration_of_vanadium_in_pm2p5_in_air)', 'zinc in pm25 (mass_concentration_of_zinc_in_pm2p5_in_air)']" />
  <attribute name="keywords" value="&quot;Monte Martano&quot; IT0019R aluminium antimony arsenic barium cadmium chromium cobalt copper iron lanthanum lead manganese molybdenum nickel strontium titanium vanadium zinc pm25 EMEP mass_concentration_of_aluminium_in_pm2p5_in_air mass_concentration_of_antimony_in_pm2p5_in_air mass_concentration_of_arsenic_in_pm2p5_in_air mass_concentration_of_barium_in_pm2p5_in_air mass_concentration_of_cadmium_in_pm2p5_in_air mass_concentration_of_chromium_in_pm2p5_in_air mass_concentration_of_cobalt_in_pm2p5_in_air mass_concentration_of_copper_in_pm2p5_in_air mass_concentration_of_iron_in_pm2p5_in_air mass_concentration_of_lanthanum_in_pm2p5_in_air mass_concentration_of_lead_in_pm2p5_in_air mass_concentration_of_manganese_in_pm2p5_in_air mass_concentration_of_molybdenum_in_pm2p5_in_air mass_concentration_of_nickel_in_pm2p5_in_air mass_concentration_of_strontium_in_pm2p5_in_air mass_concentration_of_titanium_in_pm2p5_in_air mass_concentration_of_vanadium_in_pm2p5_in_air mass_concentration_of_zinc_in_pm2p5_in_air" />
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  <attribute name="doi" value="https://doi.org/10.48597/P768-F9JG" />
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  <attribute name="date_created" value="2026-03-24T09:45:32.009106Z" />
  <attribute name="date_metadata_modified" value="2026-01-22T00:00:00Z" />
  <attribute name="creator_name" value="Marco Vecchiocattivi" />
  <attribute name="creator_type" value="person" />
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  <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" />
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  <attribute name="geospatial_bounds" value="POINT Z (12.565645 42.805462 1093)" />
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  <attribute name="time_coverage_end" value="2025-01-01T00:00:00Z" />
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  <attribute name="timezone" value="UTC" />
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  <attribute name="ebas_station_setting" value="Mountain" />
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  <attribute name="ebas_matrix" value="pm25" />
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  <attribute name="ebas_volume_std_pressure" value="instrument internal" />
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  <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
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  <attribute name="ebas_originator" value="&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;" />
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  <attribute name="ebas_comment" value="We are taking a 24h sample every two days. Data around april is missing due to a sampler failure." />
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  <dimension name="time" length="106" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="1" />
  <dimension name="qc_aluminium_flags" length="1" />
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  <dimension name="qc_vanadium_flags" length="1" />
  <dimension name="qc_zinc_flags" length="1" />
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    <attribute name="ebas_originator" value="&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;" />
    <attribute name="ebas_submitter" value="&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;, &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;" />
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    <attribute name="ancillary_variables" value="qc_antimony meta_antimony" />
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    <attribute name="ebas_instrument_model" value="DHA-80" />
    <attribute name="ebas_instrument_serial_number" value="5106" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="ICP-MS" />
    <attribute name="ebas_analytical_instrument_name" value="Agilent_8900" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent" />
    <attribute name="ebas_analytical_instrument_model" value="8900" />
    <attribute name="ebas_analytical_instrument_serial_number" value="1810-02718" />
    <attribute name="ebas_method_ref" value="IT15L_Agilent_8900" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_volume_std_temperature" value="instrument internal" />
    <attribute name="ebas_volume_std_pressure" value="instrument internal" />
    <attribute name="ebas_detection_limit" value="0.00451 ng/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="&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;" />
    <attribute name="ebas_submitter" value="&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;, &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;" />
    <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="We are taking a 24h sample every two days. Data around april is missing due to a sampler failure." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticleantimonymassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle antimony mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM2.5" />
    <attribute name="actris_matrix_preferred_term" value="PM2.5" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="EMEP" />
    <attribute name="actris_temporal_resolution" value="P2D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_antimony" shape="qc_antimony_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_antimony" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_arsenic" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_arsenic_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_arsenic meta_arsenic" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-01-22T00:00:00.000000Z" />
    <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" type="double" value="42.805462" />
    <attribute name="ebas_station_longitude" type="double" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="42.805462" />
    <attribute name="ebas_measurement_longitude" type="double" 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="arsenic" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="DHA-80" />
    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
    <attribute name="ebas_instrument_model" value="DHA-80" />
    <attribute name="ebas_instrument_serial_number" value="5106" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="ICP-MS" />
    <attribute name="ebas_analytical_instrument_name" value="Agilent_8900" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent" />
    <attribute name="ebas_analytical_instrument_model" value="8900" />
    <attribute name="ebas_analytical_instrument_serial_number" value="1810-02718" />
    <attribute name="ebas_method_ref" value="IT15L_Agilent_8900" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_volume_std_temperature" value="instrument internal" />
    <attribute name="ebas_volume_std_pressure" value="instrument internal" />
    <attribute name="ebas_detection_limit" value="0.01353 ng/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="&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;" />
    <attribute name="ebas_submitter" value="&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;, &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;" />
    <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="We are taking a 24h sample every two days. Data around april is missing due to a sampler failure." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlearsenicmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle arsenic mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM2.5" />
    <attribute name="actris_matrix_preferred_term" value="PM2.5" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/highvolumefiltersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="EMEP" />
    <attribute name="actris_temporal_resolution" value="P2D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_arsenic" shape="qc_arsenic_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_arsenic" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_barium" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_barium_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_barium meta_barium" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-01-22T00:00:00.000000Z" />
    <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" />
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    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_latitude" type="double" value="42.805462" />
    <attribute name="ebas_station_longitude" type="double" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="42.805462" />
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    <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="barium" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="DHA-80" />
    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
    <attribute name="ebas_instrument_model" value="DHA-80" />
    <attribute name="ebas_instrument_serial_number" value="5106" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="ICP-MS" />
    <attribute name="ebas_analytical_instrument_name" value="Agilent_8900" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent" />
    <attribute name="ebas_analytical_instrument_model" value="8900" />
    <attribute name="ebas_analytical_instrument_serial_number" value="1810-02718" />
    <attribute name="ebas_method_ref" value="IT15L_Agilent_8900" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
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    <attribute name="ebas_volume_std_pressure" value="instrument internal" />
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    <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" />
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    <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="&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;" />
    <attribute name="ebas_submitter" value="&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;, &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;" />
    <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="We are taking a 24h sample every two days. Data around april is missing due to a sampler failure." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlebariummassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle barium mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="PM2.5" />
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    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
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    <attribute name="actris_framework_preferred_term" value="EMEP" />
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    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_barium" shape="qc_barium_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_barium" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_cadmium" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_cadmium_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_cadmium meta_cadmium" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-01-22T00:00:00.000000Z" />
    <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" />
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    <attribute name="ebas_station_name" value="Monte Martano" />
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    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_latitude" type="double" value="42.805462" />
    <attribute name="ebas_station_longitude" type="double" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="42.805462" />
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    <attribute name="ebas_measurement_altitude" value="1093.0 m" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="cadmium" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="DHA-80" />
    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
    <attribute name="ebas_instrument_model" value="DHA-80" />
    <attribute name="ebas_instrument_serial_number" value="5106" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="ICP-MS" />
    <attribute name="ebas_analytical_instrument_name" value="Agilent_8900" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent" />
    <attribute name="ebas_analytical_instrument_model" value="8900" />
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    <attribute name="ebas_method_ref" value="IT15L_Agilent_8900" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
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    <attribute name="ebas_detection_limit" value="0.00548 ng/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="&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;" />
    <attribute name="ebas_submitter" value="&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;, &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;" />
    <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="We are taking a 24h sample every two days. Data around april is missing due to a sampler failure." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlecadmiummassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle cadmium mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="PM2.5" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/highvolumefiltersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="EMEP" />
    <attribute name="actris_temporal_resolution" value="P2D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_cadmium" shape="qc_cadmium_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_cadmium" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_chromium" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_chromium_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_chromium meta_chromium" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-01-22T00:00:00.000000Z" />
    <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" type="double" value="42.805462" />
    <attribute name="ebas_station_longitude" type="double" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="42.805462" />
    <attribute name="ebas_measurement_longitude" type="double" 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="chromium" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="DHA-80" />
    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
    <attribute name="ebas_instrument_model" value="DHA-80" />
    <attribute name="ebas_instrument_serial_number" value="5106" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="ICP-MS" />
    <attribute name="ebas_analytical_instrument_name" value="Agilent_8900" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent" />
    <attribute name="ebas_analytical_instrument_model" value="8900" />
    <attribute name="ebas_analytical_instrument_serial_number" value="1810-02718" />
    <attribute name="ebas_method_ref" value="IT15L_Agilent_8900" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_volume_std_temperature" value="instrument internal" />
    <attribute name="ebas_volume_std_pressure" value="instrument internal" />
    <attribute name="ebas_detection_limit" value="0.01364 ng/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="&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;" />
    <attribute name="ebas_submitter" value="&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;, &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;" />
    <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="We are taking a 24h sample every two days. Data around april is missing due to a sampler failure." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlechromiummassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle chromium mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM2.5" />
    <attribute name="actris_matrix_preferred_term" value="PM2.5" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/highvolumefiltersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="EMEP" />
    <attribute name="actris_temporal_resolution" value="P2D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_chromium" shape="qc_chromium_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_chromium" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_cobalt" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_cobalt_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_cobalt meta_cobalt" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-01-22T00:00:00.000000Z" />
    <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" type="double" value="42.805462" />
    <attribute name="ebas_station_longitude" type="double" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="42.805462" />
    <attribute name="ebas_measurement_longitude" type="double" 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="cobalt" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="DHA-80" />
    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
    <attribute name="ebas_instrument_model" value="DHA-80" />
    <attribute name="ebas_instrument_serial_number" value="5106" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="ICP-MS" />
    <attribute name="ebas_analytical_instrument_name" value="Agilent_8900" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent" />
    <attribute name="ebas_analytical_instrument_model" value="8900" />
    <attribute name="ebas_analytical_instrument_serial_number" value="1810-02718" />
    <attribute name="ebas_method_ref" value="IT15L_Agilent_8900" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_volume_std_temperature" value="instrument internal" />
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    <attribute name="ebas_detection_limit" value="0.00217 ng/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" />
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    <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="&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;" />
    <attribute name="ebas_submitter" value="&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;, &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;" />
    <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="We are taking a 24h sample every two days. Data around april is missing due to a sampler failure." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlecobaltmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle cobalt mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="PM2.5" />
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    <attribute name="actris_framework_preferred_term" value="EMEP" />
    <attribute name="actris_temporal_resolution" value="P2D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_cobalt" shape="qc_cobalt_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_cobalt" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_copper" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_copper_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_copper meta_copper" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-01-22T00:00:00.000000Z" />
    <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" />
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    <attribute name="ebas_station_setting" value="Mountain" />
    <attribute name="ebas_station_latitude" type="double" value="42.805462" />
    <attribute name="ebas_station_longitude" type="double" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="42.805462" />
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    <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="copper" />
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    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
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    <attribute name="ebas_instrument_name" value="DHA-80" />
    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
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    <attribute name="ebas_instrument_serial_number" value="5106" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
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    <attribute name="ebas_analytical_instrument_name" value="Agilent_8900" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent" />
    <attribute name="ebas_analytical_instrument_model" value="8900" />
    <attribute name="ebas_analytical_instrument_serial_number" value="1810-02718" />
    <attribute name="ebas_method_ref" value="IT15L_Agilent_8900" />
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    <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" />
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    <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="&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;" />
    <attribute name="ebas_submitter" value="&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;, &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;" />
    <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="We are taking a 24h sample every two days. Data around april is missing due to a sampler failure." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlecoppermassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle copper mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM2.5" />
    <attribute name="actris_matrix_preferred_term" value="PM2.5" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="EMEP" />
    <attribute name="actris_temporal_resolution" value="P2D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_copper" shape="qc_copper_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_copper" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_iron" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_iron_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_iron meta_iron" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-01-22T00:00:00.000000Z" />
    <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" type="double" value="42.805462" />
    <attribute name="ebas_station_longitude" type="double" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="42.805462" />
    <attribute name="ebas_measurement_longitude" type="double" 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="iron" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
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    <attribute name="ebas_instrument_name" value="DHA-80" />
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    <attribute name="ebas_instrument_model" value="DHA-80" />
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    <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent" />
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    <attribute name="ebas_volume_std_pressure" value="instrument internal" />
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    <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" />
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    <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
    <attribute name="ebas_originator" value="&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;" />
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    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticleironmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle iron mass concentration" />
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    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_iron" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_lanthanum_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_lanthanum meta_lanthanum" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-01-22T00:00:00.000000Z" />
    <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" />
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    <attribute name="ebas_station_latitude" type="double" value="42.805462" />
    <attribute name="ebas_station_longitude" type="double" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="42.805462" />
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    <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="lanthanum" />
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    <attribute name="ebas_matrix" value="pm25" />
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    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
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    <attribute name="ebas_instrument_serial_number" value="5106" />
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    <attribute name="ebas_analytical_instrument_name" value="Agilent_8900" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent" />
    <attribute name="ebas_analytical_instrument_model" value="8900" />
    <attribute name="ebas_analytical_instrument_serial_number" value="1810-02718" />
    <attribute name="ebas_method_ref" value="IT15L_Agilent_8900" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
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    <attribute name="ebas_detection_limit" value="0.00048 ng/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" />
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    <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="&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;" />
    <attribute name="ebas_submitter" value="&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;, &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;" />
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    <attribute name="ebas_comment" value="We are taking a 24h sample every two days. Data around april is missing due to a sampler failure." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlelanthanummassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle lanthanum mass concentration" />
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    <attribute name="actris_temporal_resolution" value="P2D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_lanthanum" shape="qc_lanthanum_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
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  <variable name="meta_lanthanum" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_lead" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_lead_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_lead meta_lead" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-01-22T00:00:00.000000Z" />
    <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" />
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    <attribute name="ebas_station_name" value="Monte Martano" />
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    <attribute name="ebas_station_latitude" type="double" value="42.805462" />
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    <attribute name="ebas_measurement_altitude" value="1093.0 m" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="lead" />
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    <attribute name="ebas_instrument_serial_number" value="5106" />
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    <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent" />
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    <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" />
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    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme" />
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    <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
    <attribute name="ebas_originator" value="&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;" />
    <attribute name="ebas_submitter" value="&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;, &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;" />
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    <attribute name="ebas_comment" value="We are taking a 24h sample every two days. Data around april is missing due to a sampler failure." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticleleadmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle lead mass concentration" />
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    <attribute name="actris_access_restriction" type="long" value="0" />
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  <variable name="qc_lead" shape="qc_lead_flags time" type="int">
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  <variable name="meta_lead" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <variable name="v_manganese" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_manganese_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_manganese meta_manganese" />
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    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
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    <attribute name="ebas_version" 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" />
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    <attribute name="ebas_station_name" value="Monte Martano" />
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    <attribute name="ebas_station_latitude" type="double" value="42.805462" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="manganese" />
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    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
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    <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent" />
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    <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" />
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    <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." />
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    <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
    <attribute name="ebas_originator" value="&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;" />
    <attribute name="ebas_submitter" value="&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;, &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;" />
    <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="We are taking a 24h sample every two days. Data around april is missing due to a sampler failure." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlemanganesemassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle manganese mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="PM2.5" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/highvolumefiltersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="EMEP" />
    <attribute name="actris_temporal_resolution" value="P2D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_manganese" shape="qc_manganese_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_manganese" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_molybdenum" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_molybdenum_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_molybdenum meta_molybdenum" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-01-22T00:00:00.000000Z" />
    <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" type="double" value="42.805462" />
    <attribute name="ebas_station_longitude" type="double" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="42.805462" />
    <attribute name="ebas_measurement_longitude" type="double" 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="molybdenum" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="DHA-80" />
    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
    <attribute name="ebas_instrument_model" value="DHA-80" />
    <attribute name="ebas_instrument_serial_number" value="5106" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="ICP-MS" />
    <attribute name="ebas_analytical_instrument_name" value="Agilent_8900" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent" />
    <attribute name="ebas_analytical_instrument_model" value="8900" />
    <attribute name="ebas_analytical_instrument_serial_number" value="1810-02718" />
    <attribute name="ebas_method_ref" value="IT15L_Agilent_8900" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_volume_std_temperature" value="instrument internal" />
    <attribute name="ebas_volume_std_pressure" value="instrument internal" />
    <attribute name="ebas_detection_limit" value="0.00278 ng/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="&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;" />
    <attribute name="ebas_submitter" value="&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;, &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;" />
    <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="We are taking a 24h sample every two days. Data around april is missing due to a sampler failure." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlemolybdenummassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle molybdenum mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM2.5" />
    <attribute name="actris_matrix_preferred_term" value="PM2.5" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="EMEP" />
    <attribute name="actris_temporal_resolution" value="P2D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_molybdenum" shape="qc_molybdenum_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_molybdenum" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_nickel" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nickel_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_nickel meta_nickel" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-01-22T00:00:00.000000Z" />
    <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" type="double" value="42.805462" />
    <attribute name="ebas_station_longitude" type="double" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="42.805462" />
    <attribute name="ebas_measurement_longitude" type="double" 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="nickel" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="DHA-80" />
    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
    <attribute name="ebas_instrument_model" value="DHA-80" />
    <attribute name="ebas_instrument_serial_number" value="5106" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="ICP-MS" />
    <attribute name="ebas_analytical_instrument_name" value="Agilent_8900" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent" />
    <attribute name="ebas_analytical_instrument_model" value="8900" />
    <attribute name="ebas_analytical_instrument_serial_number" value="1810-02718" />
    <attribute name="ebas_method_ref" value="IT15L_Agilent_8900" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_volume_std_temperature" value="instrument internal" />
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    <attribute name="ebas_detection_limit" value="0.02655 ng/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="&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;" />
    <attribute name="ebas_submitter" value="&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;, &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;" />
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    <attribute name="ebas_comment" value="We are taking a 24h sample every two days. Data around april is missing due to a sampler failure." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlenickelmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle nickel mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="PM2.5" />
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    <attribute name="actris_framework_preferred_term" value="EMEP" />
    <attribute name="actris_temporal_resolution" value="P2D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_nickel" shape="qc_nickel_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_nickel" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_strontium" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_strontium_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_strontium meta_strontium" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-01-22T00:00:00.000000Z" />
    <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" />
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    <attribute name="ebas_station_latitude" type="double" value="42.805462" />
    <attribute name="ebas_station_longitude" type="double" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="42.805462" />
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    <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="strontium" />
    <attribute name="ebas_unit" value="ng/m3" />
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    <attribute name="ebas_laboratory_code" value="IT15L" />
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    <attribute name="ebas_instrument_name" value="DHA-80" />
    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
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    <attribute name="ebas_instrument_serial_number" value="5106" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="ICP-MS" />
    <attribute name="ebas_analytical_instrument_name" value="Agilent_8900" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent" />
    <attribute name="ebas_analytical_instrument_model" value="8900" />
    <attribute name="ebas_analytical_instrument_serial_number" value="1810-02718" />
    <attribute name="ebas_method_ref" value="IT15L_Agilent_8900" />
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    <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="&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;" />
    <attribute name="ebas_submitter" value="&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;, &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;" />
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    <attribute name="ebas_comment" value="We are taking a 24h sample every two days. Data around april is missing due to a sampler failure." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlestrontiummassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle strontium mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM2.5" />
    <attribute name="actris_matrix_preferred_term" value="PM2.5" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
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    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="EMEP" />
    <attribute name="actris_temporal_resolution" value="P2D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_strontium" shape="qc_strontium_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_strontium" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_titanium" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_titanium_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_titanium meta_titanium" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-01-22T00:00:00.000000Z" />
    <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" type="double" value="42.805462" />
    <attribute name="ebas_station_longitude" type="double" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="42.805462" />
    <attribute name="ebas_measurement_longitude" type="double" 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="titanium" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="DHA-80" />
    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
    <attribute name="ebas_instrument_model" value="DHA-80" />
    <attribute name="ebas_instrument_serial_number" value="5106" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="ICP-MS" />
    <attribute name="ebas_analytical_instrument_name" value="Agilent_8900" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent" />
    <attribute name="ebas_analytical_instrument_model" value="8900" />
    <attribute name="ebas_analytical_instrument_serial_number" value="1810-02718" />
    <attribute name="ebas_method_ref" value="IT15L_Agilent_8900" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_volume_std_temperature" value="instrument internal" />
    <attribute name="ebas_volume_std_pressure" value="instrument internal" />
    <attribute name="ebas_detection_limit" value="0.12962 ng/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="&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;" />
    <attribute name="ebas_submitter" value="&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;, &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;" />
    <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="We are taking a 24h sample every two days. Data around april is missing due to a sampler failure." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticletitaniummassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle titanium mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM2.5" />
    <attribute name="actris_matrix_preferred_term" value="PM2.5" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/highvolumefiltersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="EMEP" />
    <attribute name="actris_temporal_resolution" value="P2D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_titanium" shape="qc_titanium_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_titanium" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_vanadium" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_vanadium_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_vanadium meta_vanadium" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-01-22T00:00:00.000000Z" />
    <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" type="double" value="42.805462" />
    <attribute name="ebas_station_longitude" type="double" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="42.805462" />
    <attribute name="ebas_measurement_longitude" type="double" 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="vanadium" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="DHA-80" />
    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
    <attribute name="ebas_instrument_model" value="DHA-80" />
    <attribute name="ebas_instrument_serial_number" value="5106" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="ICP-MS" />
    <attribute name="ebas_analytical_instrument_name" value="Agilent_8900" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent" />
    <attribute name="ebas_analytical_instrument_model" value="8900" />
    <attribute name="ebas_analytical_instrument_serial_number" value="1810-02718" />
    <attribute name="ebas_method_ref" value="IT15L_Agilent_8900" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_volume_std_temperature" value="instrument internal" />
    <attribute name="ebas_volume_std_pressure" value="instrument internal" />
    <attribute name="ebas_detection_limit" value="0.00137 ng/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="&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;" />
    <attribute name="ebas_submitter" value="&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;, &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;" />
    <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="We are taking a 24h sample every two days. Data around april is missing due to a sampler failure." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlevanadiummassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle vanadium mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM2.5" />
    <attribute name="actris_matrix_preferred_term" value="PM2.5" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/highvolumefiltersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="EMEP" />
    <attribute name="actris_temporal_resolution" value="P2D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_vanadium" shape="qc_vanadium_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_vanadium" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="v_zinc" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_zinc_in_pm2p5_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_zinc meta_zinc" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="2026-01-22T00:00:00.000000Z" />
    <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" type="double" value="42.805462" />
    <attribute name="ebas_station_longitude" type="double" value="12.565645" />
    <attribute name="ebas_station_altitude" value="1090.0 m" />
    <attribute name="ebas_measurement_latitude" type="double" value="42.805462" />
    <attribute name="ebas_measurement_longitude" type="double" 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="zinc" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="pm25" />
    <attribute name="ebas_laboratory_code" value="IT15L" />
    <attribute name="ebas_instrument_type" value="high_vol_sampler" />
    <attribute name="ebas_instrument_name" value="DHA-80" />
    <attribute name="ebas_instrument_manufacturer" value="DIGITEL" />
    <attribute name="ebas_instrument_model" value="DHA-80" />
    <attribute name="ebas_instrument_serial_number" value="5106" />
    <attribute name="ebas_analytical_laboratory_code" value="IT15L" />
    <attribute name="ebas_analytical_measurement_technique" value="ICP-MS" />
    <attribute name="ebas_analytical_instrument_name" value="Agilent_8900" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Agilent" />
    <attribute name="ebas_analytical_instrument_model" value="8900" />
    <attribute name="ebas_analytical_instrument_serial_number" value="1810-02718" />
    <attribute name="ebas_method_ref" value="IT15L_Agilent_8900" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_volume_std_temperature" value="instrument internal" />
    <attribute name="ebas_volume_std_pressure" value="instrument internal" />
    <attribute name="ebas_detection_limit" value="0.19876 ng/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="&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;" />
    <attribute name="ebas_submitter" value="&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;, &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;" />
    <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="We are taking a 24h sample every two days. Data around april is missing due to a sampler failure." />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlezincmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle zinc mass concentration" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM2.5" />
    <attribute name="actris_matrix_preferred_term" value="PM2.5" />
    <attribute name="actris_timeliness_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/scheduled" />
    <attribute name="actris_timeliness_preferred_term" value="scheduled" />
    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/highvolumefiltersampler" />
    <attribute name="actris_instrument_type_preferred_term" value="high volume filter sampler" />
    <attribute name="actris_framework_uri" value="https://vocabulary.actris.nilu.no/actris_controlled_lists/EMEP" />
    <attribute name="actris_framework_preferred_term" value="EMEP" />
    <attribute name="actris_temporal_resolution" value="P2D" />
    <attribute name="actris_access_restriction" type="long" value="0" />
  </variable>
  <variable name="qc_zinc" shape="qc_zinc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="meta_zinc" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="time" shape="time" type="double">
    <attribute name="long_name" value="time of measurement" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01T00:00:00Z" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="standard" />
    <attribute name="bounds" value="time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
  <variable name="metadata_time" shape="metadata_time" type="double">
    <attribute name="long_name" value="time of ebas metadata intervals" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01T00:00:00Z" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="standard" />
    <attribute name="bounds" value="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
</netcdf>
