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  <attribute name="title" value="Heavy metals and inorganics in air and particle phase at Beograd Ada Marina" />
  <attribute name="summary" value="Heavy metals and inorganics in air and particle phase at Beograd Ada Marina. These measurements are gathered as a part of the following projects CAMPAIGN, WeBaSOOP and they are stored in the EBAS database (http://ebas.nilu.no/). Parameters measured are: ['aluminium in pm10 (mass_concentration_of_aluminium_in_pm10_in_air)', 'antimony in pm10 (mass_concentration_of_antimony_in_pm10_in_air)', 'arsenic in pm10 (mass_concentration_of_arsenic_in_pm10_in_air)', 'barium in pm10 (mass_concentration_of_barium_in_pm10_in_air)', 'cadmium in pm10 (mass_concentration_of_cadmium_in_pm10_in_air)', 'calcium in pm10 (mass_concentration_of_calcium_in_pm10_in_air)', 'chromium in pm10 (mass_concentration_of_chromium_in_pm10_in_air)', 'cobalt in pm10 (mass_concentration_of_cobalt_in_pm10_in_air)', 'copper in pm10 (mass_concentration_of_copper_in_pm10_in_air)', 'gallium in pm10 (mass_concentration_of_gallium_in_pm10_in_air)', 'iron in pm10 (mass_concentration_of_iron_in_pm10_in_air)', 'lead in pm10 (mass_concentration_of_lead_in_pm10_in_air)', 'magnesium in pm10 (mass_concentration_of_magnesium_in_pm10_in_air)', 'manganese in pm10 (mass_concentration_of_manganese_in_pm10_in_air)', 'molybdenum in pm10 (mass_concentration_of_molybdenum_in_pm10_in_air)', 'nickel in pm10 (mass_concentration_of_nickel_in_pm10_in_air)', 'phosphorus in pm10 (mass_concentration_of_phosphorus_in_pm10_in_air)', 'potassium in pm10 (mass_concentration_of_potassium_in_pm10_in_air)', 'rubidium in pm10 (mass_concentration_of_rubidium_in_pm10_in_air)', 'selenium in pm10 (mass_concentration_of_selenium_in_pm10_in_air)', 'sodium in pm10 (mass_concentration_of_sodium_in_pm10_in_air)', 'strontium in pm10 (mass_concentration_of_strontium_in_pm10_in_air)', 'tin in pm10 (mass_concentration_of_tin_in_pm10_in_air)', 'titanium in pm10 (mass_concentration_of_titanium_in_pm10_in_air)', 'vanadium in pm10 (mass_concentration_of_vanadium_in_pm10_in_air)', 'zinc in pm10 (mass_concentration_of_zinc_in_pm10_in_air)', 'zirconium in pm10 (mass_concentration_of_zirconium_in_pm10_in_air)']" />
  <attribute name="keywords" value="&quot;Beograd Ada Marina&quot; RS0006U aluminium antimony arsenic barium cadmium calcium chromium cobalt copper gallium iron lead magnesium manganese molybdenum nickel phosphorus potassium rubidium selenium sodium strontium tin titanium vanadium zinc zirconium pm10 CAMPAIGN WeBaSOOP mass_concentration_of_aluminium_in_pm10_in_air mass_concentration_of_antimony_in_pm10_in_air mass_concentration_of_arsenic_in_pm10_in_air mass_concentration_of_barium_in_pm10_in_air mass_concentration_of_cadmium_in_pm10_in_air mass_concentration_of_calcium_in_pm10_in_air mass_concentration_of_chromium_in_pm10_in_air mass_concentration_of_cobalt_in_pm10_in_air mass_concentration_of_copper_in_pm10_in_air mass_concentration_of_gallium_in_pm10_in_air mass_concentration_of_iron_in_pm10_in_air mass_concentration_of_lead_in_pm10_in_air mass_concentration_of_magnesium_in_pm10_in_air mass_concentration_of_manganese_in_pm10_in_air mass_concentration_of_molybdenum_in_pm10_in_air mass_concentration_of_nickel_in_pm10_in_air mass_concentration_of_phosphorus_in_pm10_in_air mass_concentration_of_potassium_in_pm10_in_air mass_concentration_of_rubidium_in_pm10_in_air mass_concentration_of_selenium_in_pm10_in_air mass_concentration_of_sodium_in_pm10_in_air mass_concentration_of_strontium_in_pm10_in_air mass_concentration_of_tin_in_pm10_in_air mass_concentration_of_titanium_in_pm10_in_air mass_concentration_of_vanadium_in_pm10_in_air mass_concentration_of_zinc_in_pm10_in_air mass_concentration_of_zirconium_in_pm10_in_air" />
  <attribute name="id" value="6TC4-E39Q.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="CAMPAIGN, WeBaSOOP" />
  <attribute name="acknowledgement" value="" />
  <attribute name="doi" value="https://doi.org/10.48597/6TC4-E39Q" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Jovasevic-Stojanovic, M., Kovacevic, R., Radovic, B., CAMPAIGN, WeBaSOOP, 2025, Heavy metals and inorganics in air and particle phase at Beograd Ada Marina, data hosted by EBAS at NILU, DOI: https://doi.org/10.48597/6TC4-E39Q" />
  <attribute name="source" value="surface observation" />
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  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2025-10-17T14:59:09.013869Z" />
  <attribute name="date_metadata_modified" value="2025-10-17T00:00:00Z" />
  <attribute name="creator_name" value="Milena Jovasevic-Stojanovic, Renata Kovacevic, Bojan Radovic" />
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  <attribute name="contributor_name" value="Bojana Petrovic" />
  <attribute name="contributor_role" value="data submitter" />
  <attribute name="publisher_type" value="institution" />
  <attribute name="publisher_name" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_institution" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
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  <attribute name="publisher_url" value="https://www.nilu.no/" />
  <attribute name="geospatial_bounds" value="POINT Z (20.417187 44.790286 71)" />
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  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="time_coverage_start" value="2023-05-30T21:59:59Z" />
  <attribute name="time_coverage_end" value="2024-05-31T21:59:59Z" />
  <attribute name="time_coverage_duration" value="P0001-00-01T00:00:00" />
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  <attribute name="ebas_file_creation" value="2026-06-12T22:37:32.044791Z" />
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  <attribute name="ebas_version_description" value="initial revision, manually inspected" />
  <attribute name="ebas_statistics" value="arithmetic mean" />
  <attribute name="ebas_data_level" value="2" />
  <attribute name="ebas_period_code" value="1y" />
  <attribute name="ebas_resolution_code" value="2d" />
  <attribute name="ebas_sample_duration" value="1d" />
  <attribute name="ebas_orig_time_res" value="1d" />
  <attribute name="ebas_station_code" value="RS0006U" />
  <attribute name="ebas_platform_code" value="RS0006S" />
  <attribute name="ebas_station_name" value="Beograd Ada Marina" />
  <attribute name="ebas_station_wdca_id" value="" />
  <attribute name="ebas_station_gaw_id" value="" />
  <attribute name="ebas_station_gaw_name" value="" />
  <attribute name="ebas_station_other_ids" value="" />
  <attribute name="ebas_station_land_use" value="Urban park" />
  <attribute name="ebas_station_setting" value="Urban and center city" />
  <attribute name="ebas_station_latitude" type="double" value="44.790286" />
  <attribute name="ebas_station_longitude" type="double" value="20.417187" />
  <attribute name="ebas_station_altitude" value="71.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_matrix" value="pm10" />
  <attribute name="ebas_laboratory_code" value="RS01L" />
  <attribute name="ebas_instrument_type" value="low_vol_sampler" />
  <attribute name="ebas_instrument_name" value="kfg_rs06_pm10" />
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  <attribute name="ebas_instrument_model" value="LVS3" />
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  <attribute name="ebas_analytical_instrument_manufacturer" value="PerkinElmer" />
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  <attribute name="ebas_flow_rate" value="38.3 l/min" />
  <attribute name="ebas_medium" value="Quartz" />
  <attribute name="ebas_sample_preparation" value="Acid extraction" />
  <attribute name="ebas_blank_correction" value="Blank corrected" />
  <attribute name="ebas_humidity_temperaure_control" value="None" />
  <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head." />
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  <attribute name="ebas_submitter" value="&quot;Petrovic, Bojana, bojana.petrovic@vin.bg.ac.rs, , , , , , , , &quot;" />
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  <dimension name="time" length="173" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="1" />
  <dimension name="qc_aluminium_flags" length="1" />
  <dimension name="qc_antimony_flags" length="1" />
  <dimension name="qc_arsenic_flags" length="1" />
  <dimension name="qc_barium_flags" length="1" />
  <dimension name="qc_cadmium_flags" length="1" />
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  <dimension name="qc_chromium_flags" length="1" />
  <dimension name="qc_cobalt_flags" length="1" />
  <dimension name="qc_copper_flags" length="1" />
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  <dimension name="qc_magnesium_flags" length="1" />
  <dimension name="qc_manganese_flags" length="1" />
  <dimension name="qc_molybdenum_flags" length="1" />
  <dimension name="qc_nickel_flags" length="1" />
  <dimension name="qc_phosphorus_flags" length="1" />
  <dimension name="qc_potassium_flags" length="1" />
  <dimension name="qc_rubidium_flags" length="1" />
  <dimension name="qc_selenium_flags" length="1" />
  <dimension name="qc_sodium_flags" length="1" />
  <dimension name="qc_strontium_flags" length="1" />
  <dimension name="qc_tin_flags" length="1" />
  <dimension name="qc_titanium_flags" length="1" />
  <dimension name="qc_vanadium_flags" length="1" />
  <dimension name="qc_zinc_flags" length="1" />
  <dimension name="qc_zirconium_flags" length="1" />
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    <attribute name="time_coverage_start" value="2023-05-31T09:59:59Z" />
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    <attribute name="ebas_framework_name" value=", Research Reinforcing in the Western Balkans in Offline and Online Monitoring and Source Identification of Atmospheric Particles" />
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    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlealuminiummassconcentration" />
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    <attribute name="units" value="ng/m3" />
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    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
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    <attribute name="ebas_station_code" value="RS0006U" />
    <attribute name="ebas_platform_code" value="RS0006S" />
    <attribute name="ebas_station_name" value="Beograd Ada Marina" />
    <attribute name="ebas_station_wdca_id" value="" />
    <attribute name="ebas_station_gaw_id" value="" />
    <attribute name="ebas_station_gaw_name" value="" />
    <attribute name="ebas_station_other_ids" value="" />
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    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="44.790286" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="antimony" />
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    <attribute name="ebas_originator" value="&quot;Jovasevic-Stojanovic, Milena, mjovst@vin.bg.ac.rs, Vinca Institute of Nuclear Sciences, VINCA, , Mike Petrovic Alasa 12-14, , 11351, Belgrade, Serbia&quot;, &quot;Kovacevic, Renata, , , , , , , , , &quot;, &quot;Radovic, Bojan, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Petrovic, Bojana, bojana.petrovic@vin.bg.ac.rs, , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: CAMPAIGN, WeBaSOOP. Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the data included are affiliated with the framework of WeBaSOOP project (ID nr. 101060170). Request acknowledgement details from data originator" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="_FillValue" type="double" value="NaN" />
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    <attribute name="ebas_data_license" value="" />
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    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="RS0006U" />
    <attribute name="ebas_platform_code" value="RS0006S" />
    <attribute name="ebas_station_name" value="Beograd Ada Marina" />
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    <attribute name="ebas_station_land_use" value="Urban park" />
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    <attribute name="ancillary_variables" value="qc_cadmium meta_cadmium" />
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    <attribute name="ebas_component" value="cadmium" />
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    <attribute name="ebas_station_name" value="Beograd Ada Marina" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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  <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_pm10_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" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-10-17T00:00:00.000000Z" />
    <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_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="RS0006U" />
    <attribute name="ebas_platform_code" value="RS0006S" />
    <attribute name="ebas_station_name" value="Beograd Ada Marina" />
    <attribute name="ebas_station_wdca_id" value="" />
    <attribute name="ebas_station_gaw_id" value="" />
    <attribute name="ebas_station_gaw_name" value="" />
    <attribute name="ebas_station_other_ids" value="" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="44.790286" />
    <attribute name="ebas_station_longitude" type="double" value="20.417187" />
    <attribute name="ebas_station_altitude" value="71.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="copper" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="RS01L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
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    <attribute name="ebas_instrument_manufacturer" value="Leckel" />
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    <attribute name="ebas_analytical_laboratory_code" value="RS04L" />
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    <attribute name="ebas_analytical_instrument_name" value="NexION-1000" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="PerkinElmer" />
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    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="Upward facing with rain shield" />
    <attribute name="ebas_flow_rate" value="38.3 l/min" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_sample_preparation" value="Acid extraction" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head." />
    <attribute name="ebas_detection_limit" value="0.5 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Lower quantification limit, Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
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    <attribute name="ebas_framework_name" value=", Research Reinforcing in the Western Balkans in Offline and Online Monitoring and Source Identification of Atmospheric Particles" />
    <attribute name="ebas_framework_description" value=", " />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas, " />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no, " />
    <attribute name="ebas_originator" value="&quot;Jovasevic-Stojanovic, Milena, mjovst@vin.bg.ac.rs, Vinca Institute of Nuclear Sciences, VINCA, , Mike Petrovic Alasa 12-14, , 11351, Belgrade, Serbia&quot;, &quot;Kovacevic, Renata, , , , , , , , , &quot;, &quot;Radovic, Bojan, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Petrovic, Bojana, bojana.petrovic@vin.bg.ac.rs, , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: CAMPAIGN, WeBaSOOP. Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the data included are affiliated with the framework of WeBaSOOP project (ID nr. 101060170). Request acknowledgement details from data originator" />
    <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" />
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    <attribute name="actris_temporal_resolution" value="P2D" />
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    <attribute name="standard_name" value="mass_concentration_of_gallium_in_pm10_in_air" />
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    <attribute name="ebas_data_license" value="" />
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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_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="RS0006U" />
    <attribute name="ebas_platform_code" value="RS0006S" />
    <attribute name="ebas_station_name" value="Beograd Ada Marina" />
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    <attribute name="ebas_station_land_use" value="Urban park" />
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    <attribute name="ebas_station_altitude" value="71.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="gallium" />
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    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
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    <attribute name="ebas_analytical_instrument_manufacturer" value="PerkinElmer" />
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    <attribute name="ebas_sample_preparation" value="Acid extraction" />
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    <attribute name="ebas_originator" value="&quot;Jovasevic-Stojanovic, Milena, mjovst@vin.bg.ac.rs, Vinca Institute of Nuclear Sciences, VINCA, , Mike Petrovic Alasa 12-14, , 11351, Belgrade, Serbia&quot;, &quot;Kovacevic, Renata, , , , , , , , , &quot;, &quot;Radovic, Bojan, , , , , , , , , &quot;" />
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    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="RS0006U" />
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    <attribute name="ebas_station_name" value="Beograd Ada Marina" />
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    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticleironmassconcentration" />
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    <attribute name="ancillary_variables" value="qc_lead meta_lead" />
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    <attribute name="ebas_version" value="1" />
    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
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    <attribute name="ebas_station_code" value="RS0006U" />
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    <attribute name="ebas_station_name" value="Beograd Ada Marina" />
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    <attribute name="ebas_station_other_ids" value="" />
    <attribute name="ebas_station_land_use" value="Urban park" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="lead" />
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    <attribute name="ebas_instrument_manufacturer" value="Leckel" />
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    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="RS0006U" />
    <attribute name="ebas_platform_code" value="RS0006S" />
    <attribute name="ebas_station_name" value="Beograd Ada Marina" />
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    <attribute name="ebas_component" value="magnesium" />
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    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="RS0006U" />
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    <attribute name="ebas_station_name" value="Beograd Ada Marina" />
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    <attribute name="actris_instrument_type_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/lowvolumesampler" />
    <attribute name="actris_instrument_type_preferred_term" value="low volume sampler" />
    <attribute name="actris_framework_uri" value="" />
    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="P2D" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </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_pm10_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="" />
    <attribute name="ebas_revision_date" value="2025-10-17T00:00:00.000000Z" />
    <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_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="RS0006U" />
    <attribute name="ebas_platform_code" value="RS0006S" />
    <attribute name="ebas_station_name" value="Beograd Ada Marina" />
    <attribute name="ebas_station_wdca_id" value="" />
    <attribute name="ebas_station_gaw_id" value="" />
    <attribute name="ebas_station_gaw_name" value="" />
    <attribute name="ebas_station_other_ids" value="" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="44.790286" />
    <attribute name="ebas_station_longitude" type="double" value="20.417187" />
    <attribute name="ebas_station_altitude" value="71.0 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="pm10" />
    <attribute name="ebas_laboratory_code" value="RS01L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="kfg_rs06_pm10" />
    <attribute name="ebas_instrument_manufacturer" value="Leckel" />
    <attribute name="ebas_instrument_model" value="LVS3" />
    <attribute name="ebas_analytical_laboratory_code" value="RS04L" />
    <attribute name="ebas_analytical_measurement_technique" value="ICP-MS" />
    <attribute name="ebas_analytical_instrument_name" value="NexION-1000" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="PerkinElmer" />
    <attribute name="ebas_analytical_instrument_model" value="NexION 1000" />
    <attribute name="ebas_analytical_instrument_serial_number" value="815N1081101x" />
    <attribute name="ebas_method_ref" value="RS04L_ICP-MS" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="Upward facing with rain shield" />
    <attribute name="ebas_flow_rate" value="38.3 l/min" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_sample_preparation" value="Acid extraction" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head." />
    <attribute name="ebas_detection_limit" value="1.5 ng/m3" />
    <attribute name="ebas_detection_limit_expl" value="Lower quantification limit, Determined by taking 3 times standard deviation of ensemble of field blanks" />
    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as measured if within detection limit, flagged with 147" />
    <attribute name="ebas_organization" value="RS01L, Vinca Institute of Nuclear Sciences, , Radiation and Environmental Protection Laboratory, P.O.Box 522, , 11001, Belgrade, Serbia" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN, WeBaSOOP" />
    <attribute name="ebas_framework_name" value=", Research Reinforcing in the Western Balkans in Offline and Online Monitoring and Source Identification of Atmospheric Particles" />
    <attribute name="ebas_framework_description" value=", " />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas, " />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no, " />
    <attribute name="ebas_originator" value="&quot;Jovasevic-Stojanovic, Milena, mjovst@vin.bg.ac.rs, Vinca Institute of Nuclear Sciences, VINCA, , Mike Petrovic Alasa 12-14, , 11351, Belgrade, Serbia&quot;, &quot;Kovacevic, Renata, , , , , , , , , &quot;, &quot;Radovic, Bojan, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Petrovic, Bojana, bojana.petrovic@vin.bg.ac.rs, , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: CAMPAIGN, WeBaSOOP. Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the data included are affiliated with the framework of WeBaSOOP project (ID nr. 101060170). Request acknowledgement details from data originator" />
    <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" />
    <attribute name="actris_matrix_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/PM10" />
    <attribute name="actris_matrix_preferred_term" value="PM10" />
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    <attribute name="actris_instrument_type_preferred_term" value="low volume sampler" />
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    <attribute name="actris_framework_preferred_term" value="" />
    <attribute name="actris_temporal_resolution" value="P2D" />
    <attribute name="actris_access_restriction" type="long" value="1" />
  </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_phosphorus" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_phosphorus_in_pm10_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_phosphorus meta_phosphorus" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-10-17T00:00:00.000000Z" />
    <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_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="RS0006U" />
    <attribute name="ebas_platform_code" value="RS0006S" />
    <attribute name="ebas_station_name" value="Beograd Ada Marina" />
    <attribute name="ebas_station_wdca_id" value="" />
    <attribute name="ebas_station_gaw_id" value="" />
    <attribute name="ebas_station_gaw_name" value="" />
    <attribute name="ebas_station_other_ids" value="" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="44.790286" />
    <attribute name="ebas_station_longitude" type="double" value="20.417187" />
    <attribute name="ebas_station_altitude" value="71.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="phosphorus" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="RS01L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="kfg_rs06_pm10" />
    <attribute name="ebas_instrument_manufacturer" value="Leckel" />
    <attribute name="ebas_instrument_model" value="LVS3" />
    <attribute name="ebas_analytical_laboratory_code" value="RS04L" />
    <attribute name="ebas_analytical_measurement_technique" value="ICP-MS" />
    <attribute name="ebas_analytical_instrument_name" value="NexION-1000" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="PerkinElmer" />
    <attribute name="ebas_analytical_instrument_model" value="NexION 1000" />
    <attribute name="ebas_analytical_instrument_serial_number" value="815N1081101x" />
    <attribute name="ebas_method_ref" value="RS04L_ICP-MS" />
    <attribute name="ebas_standard_method" value="None" />
    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="Upward facing with rain shield" />
    <attribute name="ebas_flow_rate" value="38.3 l/min" />
    <attribute name="ebas_medium" value="Quartz" />
    <attribute name="ebas_sample_preparation" value="Acid extraction" />
    <attribute name="ebas_blank_correction" value="Blank corrected" />
    <attribute name="ebas_humidity_temperaure_control" value="None" />
    <attribute name="ebas_humidity_temperaure_control_description" value="filter kept at ambient conditions together with sampling head." />
    <attribute name="ebas_detection_limit" value="10.0 ng/m3" />
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    <attribute name="ebas_zero_negative_values_code" value="Zero/negative possible" />
    <attribute name="ebas_zero_negative_values" value="Zero/negative values reported as measured if within detection limit, flagged with 147" />
    <attribute name="ebas_organization" value="RS01L, Vinca Institute of Nuclear Sciences, , Radiation and Environmental Protection Laboratory, P.O.Box 522, , 11001, Belgrade, Serbia" />
    <attribute name="ebas_framework_acronym" value="CAMPAIGN, WeBaSOOP" />
    <attribute name="ebas_framework_name" value=", Research Reinforcing in the Western Balkans in Offline and Online Monitoring and Source Identification of Atmospheric Particles" />
    <attribute name="ebas_framework_description" value=", " />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas, " />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no, " />
    <attribute name="ebas_originator" value="&quot;Jovasevic-Stojanovic, Milena, mjovst@vin.bg.ac.rs, Vinca Institute of Nuclear Sciences, VINCA, , Mike Petrovic Alasa 12-14, , 11351, Belgrade, Serbia&quot;, &quot;Kovacevic, Renata, , , , , , , , , &quot;, &quot;Radovic, Bojan, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Petrovic, Bojana, bojana.petrovic@vin.bg.ac.rs, , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: CAMPAIGN, WeBaSOOP. Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the data included are affiliated with the framework of WeBaSOOP project (ID nr. 101060170). Request acknowledgement details from data originator" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlephosphorusmassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle phosphorus mass concentration" />
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    <attribute name="actris_temporal_resolution" value="P2D" />
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  <variable name="qc_phosphorus" shape="qc_phosphorus_flags time" type="int">
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    <attribute name="units" value="1" />
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  <variable name="meta_phosphorus" 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_potassium" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_potassium_in_pm10_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="qc_potassium meta_potassium" />
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    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-10-17T00:00:00.000000Z" />
    <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_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="RS0006U" />
    <attribute name="ebas_platform_code" value="RS0006S" />
    <attribute name="ebas_station_name" value="Beograd Ada Marina" />
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    <attribute name="ebas_station_gaw_id" value="" />
    <attribute name="ebas_station_gaw_name" value="" />
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    <attribute name="ebas_station_land_use" value="Urban park" />
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    <attribute name="ebas_station_latitude" type="double" value="44.790286" />
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    <attribute name="ebas_station_altitude" value="71.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="potassium" />
    <attribute name="ebas_unit" value="ug/m3" />
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    <attribute name="ebas_laboratory_code" value="RS01L" />
    <attribute name="ebas_instrument_type" value="low_vol_sampler" />
    <attribute name="ebas_instrument_name" value="kfg_rs06_pm10" />
    <attribute name="ebas_instrument_manufacturer" value="Leckel" />
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    <attribute name="ebas_analytical_laboratory_code" value="RS04L" />
    <attribute name="ebas_analytical_measurement_technique" value="ICP-MS" />
    <attribute name="ebas_analytical_instrument_name" value="NexION-1000" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="PerkinElmer" />
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    <attribute name="ebas_analytical_instrument_serial_number" value="815N1081101x" />
    <attribute name="ebas_method_ref" value="RS04L_ICP-MS" />
    <attribute name="ebas_standard_method" value="None" />
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    <attribute name="ebas_sample_preparation" value="Acid extraction" />
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    <attribute name="ebas_framework_acronym" value="CAMPAIGN, WeBaSOOP" />
    <attribute name="ebas_framework_name" value=", Research Reinforcing in the Western Balkans in Offline and Online Monitoring and Source Identification of Atmospheric Particles" />
    <attribute name="ebas_framework_description" value=", " />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas, " />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no, " />
    <attribute name="ebas_originator" value="&quot;Jovasevic-Stojanovic, Milena, mjovst@vin.bg.ac.rs, Vinca Institute of Nuclear Sciences, VINCA, , Mike Petrovic Alasa 12-14, , 11351, Belgrade, Serbia&quot;, &quot;Kovacevic, Renata, , , , , , , , , &quot;, &quot;Radovic, Bojan, , , , , , , , , &quot;" />
    <attribute name="ebas_submitter" value="&quot;Petrovic, Bojana, bojana.petrovic@vin.bg.ac.rs, , , , , , , , &quot;" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: CAMPAIGN, WeBaSOOP. Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the data included are affiliated with the framework of WeBaSOOP project (ID nr. 101060170). Request acknowledgement details from data originator" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlepotassiummassconcentration" />
    <attribute name="actris_variable_preferred_term" value="aerosol particle potassium mass concentration" />
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    <attribute name="actris_matrix_preferred_term" value="PM10" />
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    <attribute name="actris_instrument_type_preferred_term" value="low volume sampler" />
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    <attribute name="actris_temporal_resolution" value="P2D" />
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  <variable name="qc_potassium" shape="qc_potassium_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_potassium" 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_rubidium" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_rubidium_in_pm10_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_rubidium meta_rubidium" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-10-17T00:00:00.000000Z" />
    <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_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="RS0006U" />
    <attribute name="ebas_platform_code" value="RS0006S" />
    <attribute name="ebas_station_name" value="Beograd Ada Marina" />
    <attribute name="ebas_station_wdca_id" value="" />
    <attribute name="ebas_station_gaw_id" value="" />
    <attribute name="ebas_station_gaw_name" value="" />
    <attribute name="ebas_station_other_ids" value="" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="44.790286" />
    <attribute name="ebas_station_longitude" type="double" value="20.417187" />
    <attribute name="ebas_station_altitude" value="71.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="rubidium" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="pm10" />
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    <attribute name="ebas_sample_preparation" value="Acid extraction" />
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    <attribute name="ebas_originator" value="&quot;Jovasevic-Stojanovic, Milena, mjovst@vin.bg.ac.rs, Vinca Institute of Nuclear Sciences, VINCA, , Mike Petrovic Alasa 12-14, , 11351, Belgrade, Serbia&quot;, &quot;Kovacevic, Renata, , , , , , , , , &quot;, &quot;Radovic, Bojan, , , , , , , , , &quot;" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="RS0006U" />
    <attribute name="ebas_platform_code" value="RS0006S" />
    <attribute name="ebas_station_name" value="Beograd Ada Marina" />
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    <attribute name="ebas_station_land_use" value="Urban park" />
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    <attribute name="ebas_analytical_instrument_manufacturer" value="PerkinElmer" />
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    <attribute name="ebas_framework_name" value=", Research Reinforcing in the Western Balkans in Offline and Online Monitoring and Source Identification of Atmospheric Particles" />
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    <attribute name="ebas_framework_contact_name" value="Wenche Aas, " />
    <attribute name="ebas_framework_contact_email" value="waa@nilu.no, " />
    <attribute name="ebas_originator" value="&quot;Jovasevic-Stojanovic, Milena, mjovst@vin.bg.ac.rs, Vinca Institute of Nuclear Sciences, VINCA, , Mike Petrovic Alasa 12-14, , 11351, Belgrade, Serbia&quot;, &quot;Kovacevic, Renata, , , , , , , , , &quot;, &quot;Radovic, Bojan, , , , , , , , , &quot;" />
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    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticleseleniummassconcentration" />
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    <attribute name="actris_temporal_resolution" value="P2D" />
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    <attribute name="units" value="ug/m3" />
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    <attribute name="ebas_station_code" value="RS0006U" />
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    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="RS0006U" />
    <attribute name="ebas_platform_code" value="RS0006S" />
    <attribute name="ebas_station_name" value="Beograd Ada Marina" />
    <attribute name="ebas_station_wdca_id" value="" />
    <attribute name="ebas_station_gaw_id" value="" />
    <attribute name="ebas_station_gaw_name" value="" />
    <attribute name="ebas_station_other_ids" value="" />
    <attribute name="ebas_station_land_use" value="Urban park" />
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    <attribute name="ebas_station_latitude" type="double" value="44.790286" />
    <attribute name="ebas_station_longitude" type="double" value="20.417187" />
    <attribute name="ebas_station_altitude" value="71.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="tin" />
    <attribute name="ebas_unit" value="ng/m3" />
    <attribute name="ebas_matrix" value="pm10" />
    <attribute name="ebas_laboratory_code" value="RS01L" />
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    <attribute name="ebas_instrument_name" value="kfg_rs06_pm10" />
    <attribute name="ebas_instrument_manufacturer" value="Leckel" />
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    <attribute name="ebas_analytical_instrument_manufacturer" value="PerkinElmer" />
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    <attribute name="ebas_analytical_instrument_serial_number" value="815N1081101x" />
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    <attribute name="ebas_sample_preparation" value="Acid extraction" />
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    <attribute name="ebas_framework_name" value=", Research Reinforcing in the Western Balkans in Offline and Online Monitoring and Source Identification of Atmospheric Particles" />
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    <attribute name="ebas_originator" value="&quot;Jovasevic-Stojanovic, Milena, mjovst@vin.bg.ac.rs, Vinca Institute of Nuclear Sciences, VINCA, , Mike Petrovic Alasa 12-14, , 11351, Belgrade, Serbia&quot;, &quot;Kovacevic, Renata, , , , , , , , , &quot;, &quot;Radovic, Bojan, , , , , , , , , &quot;" />
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    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="RS0006U" />
    <attribute name="ebas_platform_code" value="RS0006S" />
    <attribute name="ebas_station_name" value="Beograd Ada Marina" />
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    <attribute name="ebas_component" value="titanium" />
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    <attribute name="ebas_instrument_name" value="kfg_rs06_pm10" />
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    <attribute name="ebas_analytical_instrument_manufacturer" value="PerkinElmer" />
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    <attribute name="ebas_sample_preparation" value="Acid extraction" />
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    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="RS0006U" />
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    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlevanadiummassconcentration" />
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    <attribute name="ancillary_variables" value="qc_zinc meta_zinc" />
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    <attribute name="ebas_version" value="1" />
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    <attribute name="ebas_statistics" value="arithmetic mean" />
    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="RS0006U" />
    <attribute name="ebas_platform_code" value="RS0006S" />
    <attribute name="ebas_station_name" value="Beograd Ada Marina" />
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    <attribute name="ebas_station_other_ids" value="" />
    <attribute name="ebas_station_land_use" value="Urban park" />
    <attribute name="ebas_station_setting" value="Urban and center city" />
    <attribute name="ebas_station_latitude" type="double" value="44.790286" />
    <attribute name="ebas_station_longitude" type="double" value="20.417187" />
    <attribute name="ebas_station_altitude" value="71.0 m" />
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    <attribute name="ebas_component" value="zinc" />
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    <attribute name="ebas_inlet_type" value="Impactor--direct" />
    <attribute name="ebas_inlet_description" value="Upward facing with rain shield" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: CAMPAIGN, WeBaSOOP. Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the data included are affiliated with the framework of WeBaSOOP project (ID nr. 101060170). Request acknowledgement details from data originator" />
    <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" />
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    <attribute name="actris_temporal_resolution" value="P2D" />
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    <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" />
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    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_zirconium_in_pm10_in_air" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ng/m3" />
    <attribute name="ancillary_variables" value="qc_zirconium meta_zirconium" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="" />
    <attribute name="ebas_revision_date" value="2025-10-17T00:00:00.000000Z" />
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    <attribute name="ebas_version_description" value="initial revision, manually inspected" />
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    <attribute name="ebas_data_level" value="2" />
    <attribute name="ebas_sample_duration" value="1d" />
    <attribute name="ebas_orig_time_res" value="1d" />
    <attribute name="ebas_station_code" value="RS0006U" />
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    <attribute name="ebas_station_name" value="Beograd Ada Marina" />
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    <attribute name="ebas_station_latitude" type="double" value="44.790286" />
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    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="zirconium" />
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    <attribute name="ebas_analytical_instrument_manufacturer" value="PerkinElmer" />
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    <attribute name="ebas_framework_name" value=", Research Reinforcing in the Western Balkans in Offline and Online Monitoring and Source Identification of Atmospheric Particles" />
    <attribute name="ebas_framework_description" value=", " />
    <attribute name="ebas_framework_contact_name" value="Wenche Aas, " />
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    <attribute name="ebas_originator" value="&quot;Jovasevic-Stojanovic, Milena, mjovst@vin.bg.ac.rs, Vinca Institute of Nuclear Sciences, VINCA, , Mike Petrovic Alasa 12-14, , 11351, Belgrade, Serbia&quot;, &quot;Kovacevic, Renata, , , , , , , , , &quot;, &quot;Radovic, Bojan, , , , , , , , , &quot;" />
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    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the frameworks: CAMPAIGN, WeBaSOOP. Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the data included are affiliated with the framework of WeBaSOOP project (ID nr. 101060170). Request acknowledgement details from data originator" />
    <attribute name="actris_variable_uri" value="https://vocabulary.actris.nilu.no/actris_vocab/aerosolparticlezirconiummassconcentration" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
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    <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" />
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  <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" />
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