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  <attribute name="Conventions" value="CF-1.8, ACDD-1.3" />
  <attribute name="featureType" value="timeSeries" />
  <attribute name="title" value="Heavy metals and inorganics in precipitation at Montelibretti" />
  <attribute name="keywords" value="conductivity_in_precipitation, mass_concentration_of_arsenic_in_precipitation, precip, pH, arsenic, mass_concentration_of_pH_in_precipitation, lead, sulphate_total, mass_concentration_of_ammonium_in_precipitation, sulphate_corrected, chloride, mass_concentration_of_sulphate_corrected_in_precipitation, magnesium, chromium, mass_concentration_of_sulphate_corrected_for_seaspray_expressed_as_sulphur_in_precipitation, mass_concentration_of_calcium_in_precipitation, IT0001R, mass_concentration_of_copper_in_precipitation, potassium, copper, mass_concentration_of_nitrate_in_precipitation, mass_concentration_of_sodium_in_precipitation, zinc, sodium, cadmium, mass_concentration_of_nickel_in_precipitation, nickel, calcium, Montelibretti, mass_concentration_of_lead_in_precipitation, mass_concentration_of_cadmium_in_precipitation, mass_concentration_of_chloride_in_precipitation, mass_concentration_of_chromium_in_precipitation, mass_concentration_of_zinc_in_precipitation, mass_concentration_of_potassium_in_precipitation, ammonium, mass_concentration_of_magnesium_in_precipitation, nitrate, conductivity, EMEP, mass_concentration_of_sulphate_total_in_precipitation" />
  <attribute name="id" value="IT0001R.20230101000000.20260126145005.wet_only_sampler..precip.1y.1d...lev2.nc" />
  <attribute name="naming_authority" value="EBAS" />
  <attribute name="project" value="EMEP" />
  <attribute name="acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
  <attribute name="doi" value="https://doi.org/10.48597/VCHF-969E" />
  <attribute name="license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="citation" value="Tofful, L., EMEP, 2026, Heavy metals and inorganics in precipitation at Montelibretti, data hosted by EBAS at NILU, Part of DOI: https://doi.org/10.48597/VCHF-969E" />
  <attribute name="summary" value="Heavy metals and inorganics in precipitation at Montelibretti. 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: arsenic in precip (mass_concentration_of_arsenic_in_precipitation), cadmium in precip (mass_concentration_of_cadmium_in_precipitation), chromium in precip (mass_concentration_of_chromium_in_precipitation), copper in precip (mass_concentration_of_copper_in_precipitation), lead in precip (mass_concentration_of_lead_in_precipitation), nickel in precip (mass_concentration_of_nickel_in_precipitation), zinc in precip (mass_concentration_of_zinc_in_precipitation), ammonium in precip (mass_concentration_of_ammonium_in_precipitation), ammonium in precip (mass_concentration_of_ammonium_in_precipitation), calcium in precip (mass_concentration_of_calcium_in_precipitation), chloride in precip (mass_concentration_of_chloride_in_precipitation), conductivity in precip (conductivity_in_precipitation), magnesium in precip (mass_concentration_of_magnesium_in_precipitation), nitrate in precip (mass_concentration_of_nitrate_in_precipitation), nitrate in precip (mass_concentration_of_nitrate_in_precipitation), pH in precip (mass_concentration_of_pH_in_precipitation), potassium in precip (mass_concentration_of_potassium_in_precipitation), sodium in precip (mass_concentration_of_sodium_in_precipitation), sulphate_corrected in precip (mass_concentration_of_sulphate_corrected_for_seaspray_expressed_as_sulphur_in_precipitation), sulphate_corrected in precip (mass_concentration_of_sulphate_corrected_in_precipitation), sulphate_total in precip (mass_concentration_of_sulphate_total_in_precipitation), sulphate_total in precip (mass_concentration_of_sulphate_total_in_precipitation)" />
  <attribute name="source" value="surface observation" />
  <attribute name="institution" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, Roma, Italy" />
  <attribute name="processing_level" value="processing_level_test" />
  <attribute name="date_created" value="2026-01-26T14:50:05 UTC" />
  <attribute name="date_metadata_modified" value="2026-01-26T14:50:05 UTC" />
  <attribute name="creator_name" value="Luca Tofful" />
  <attribute name="creator_type" value="person" />
  <attribute name="creator_email" value="luca.tofful@cnr.it" />
  <attribute name="creator_institution" value="&quot;National Research Council, Institute of Atmospheric Pollution Research, CNR&quot;" />
  <attribute name="contributor_name" value="Luca Tofful" />
  <attribute name="contributor_role" value="data submitter" />
  <attribute name="publisher_type" value="institution" />
  <attribute name="publisher_name" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_institution" value="NILU - Norwegian Institute for Air Research, ATMOS, EBAS" />
  <attribute name="publisher_email" value="ebas@nilu.no" />
  <attribute name="publisher_url" value="https://www.nilu.no/" />
  <attribute name="geospatial_bounds" value="POINT Z (42.105694 12.640139 48.0)" />
  <attribute name="geospatial_bounds_crs" value="EPSG:4979" />
  <attribute name="geospatial_lat_min" type="double" value="42.105694" />
  <attribute name="geospatial_lat_max" type="double" value="42.105694" />
  <attribute name="geospatial_lon_min" type="double" value="12.640139" />
  <attribute name="geospatial_lon_max" type="double" value="12.640139" />
  <attribute name="geospatial_vertical_min" type="double" value="48.0" />
  <attribute name="geospatial_vertical_max" type="double" value="48.0" />
  <attribute name="geospatial_vertical_positive" value="up" />
  <attribute name="time_coverage_start" value="2023-01-01T00:00:00 UTC" />
  <attribute name="time_coverage_end" value="2024-01-01T00:00:00 UTC" />
  <attribute name="time_coverage_duration" value="P0001-00-00T00:00:00" />
  <attribute name="time_coverage_resolution" value="P0000-00-01T00:00:00" />
  <attribute name="timezone" value="UTC" />
  <attribute name="ebas_data_definition" value="EBAS_1.1" />
  <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
  <attribute name="ebas_citation" value="Tofful, L., EMEP, 2026, Heavy metals and inorganics in precipitation at Montelibretti, data hosted by EBAS at NILU, Part of DOI: https://doi.org/10.48597/VCHF-969E" />
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  <attribute name="ebas_file_name" value="IT0001R.20230101000000.20260126145005.wet_only_sampler..precip.1y.1d...lev2.nc" />
  <attribute name="ebas_contains_doi" value="https://doi.org/10.48597/VCHF-969E" />
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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_period_code" value="1y" />
  <attribute name="ebas_resolution_code" value="1d" />
  <attribute name="ebas_sample_duration" value="1d" />
  <attribute name="ebas_orig_time_res" value="1d" />
  <attribute name="ebas_station_code" value="IT0001R" />
  <attribute name="ebas_platform_code" value="IT0001S" />
  <attribute name="ebas_station_name" value="Montelibretti" />
  <attribute name="ebas_station_latitude" value="42.105694" />
  <attribute name="ebas_station_longitude" value="12.640139" />
  <attribute name="ebas_station_altitude" value="48.0 m" />
  <attribute name="ebas_regime" value="IMG" />
  <attribute name="ebas_matrix" value="precip" />
  <attribute name="ebas_laboratory_code" value="IT01L" />
  <attribute name="ebas_instrument_type" value="wet_only_sampler" />
  <attribute name="ebas_instrument_manufacturer" value="Eigenbrodt" />
  <attribute name="ebas_instrument_model" value="UNS130D" />
  <attribute name="ebas_instrument_serial_number" value="131247" />
  <attribute name="ebas_analytical_laboratory_code" value="IT01L" />
  <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
  <attribute name="ebas_blank_correction" value="Not blank corrected" />
  <attribute name="ebas_zero_negative_values" value="None" />
  <attribute name="ebas_qa1_measure_id" value="EMEP34" />
  <attribute name="ebas_qa1_date" value="2016-12-09 UTC" />
  <attribute name="ebas_qa1_outcome" value="pass" />
  <attribute name="ebas_qa1_document_name" value="Summary statistics EMEP laboratory intercalibration Round 34" />
  <attribute name="ebas_qa1_document_date" value="2017-03-08 UTC" />
  <attribute name="ebas_qa1_document_url" value="http://www.nilu.no/projects/ccc/qameasure/emep34.pdf" />
  <attribute name="ebas_organization" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, 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="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
  <attribute name="ebas_submitter" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
  <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
  <attribute name="_NCProperties" value="version=2,netcdf=4.9.1,hdf5=1.12.2" />
  <attribute name="Metadata_Conventions" value="Unidata Dataset Discovery v1.0" />
  <attribute name="geospatial_lat_units" value="degrees_north" />
  <attribute name="geospatial_lon_units" value="degrees_east" />
  <attribute name="comment" value="{&#xA;    &quot;Data definition&quot;: &quot;EBAS_1.1&quot;,&#xA;    &quot;Data license&quot;: &quot;https://creativecommons.org/licenses/by/4.0/&quot;,&#xA;    &quot;Citation&quot;: &quot;Tofful, L., EMEP, 2026, Heavy metals and inorganics in precipitation at Montelibretti, data hosted by EBAS at NILU, Part of DOI: https://doi.org/10.48597/VCHF-969E&quot;,&#xA;    &quot;Set type code&quot;: &quot;TU&quot;,&#xA;    &quot;Timezone&quot;: &quot;UTC&quot;,&#xA;    &quot;File name&quot;: &quot;IT0001R.20230101000000.20260126145005.wet_only_sampler..precip.1y.1d...lev2.nc&quot;,&#xA;    &quot;Contains data from DOI&quot;: &quot;https://doi.org/10.48597/VCHF-969E&quot;,&#xA;    &quot;File creation&quot;: &quot;2026-01-26T22:32:00.051588 UTC&quot;,&#xA;    &quot;Export state&quot;: &quot;2026-01-26T22:25:03.346563 UTC&quot;,&#xA;    &quot;Export filter&quot;: &quot;exclude-900,exclude-invalid&quot;,&#xA;    &quot;Startdate&quot;: &quot;20230101000000&quot;,&#xA;    &quot;Revision date&quot;: &quot;20260126145005&quot;,&#xA;    &quot;Version&quot;: &quot;1&quot;,&#xA;    &quot;Version description&quot;: &quot;initial revision, manually inspected&quot;,&#xA;    &quot;Statistics&quot;: &quot;arithmetic mean&quot;,&#xA;    &quot;Data level&quot;: &quot;2&quot;,&#xA;    &quot;Period code&quot;: &quot;1y&quot;,&#xA;    &quot;Resolution code&quot;: &quot;1d&quot;,&#xA;    &quot;Sample duration&quot;: &quot;1d&quot;,&#xA;    &quot;Orig. time res.&quot;: &quot;1d&quot;,&#xA;    &quot;Station code&quot;: &quot;IT0001R&quot;,&#xA;    &quot;Platform code&quot;: &quot;IT0001S&quot;,&#xA;    &quot;Station name&quot;: &quot;Montelibretti&quot;,&#xA;    &quot;Station latitude&quot;: &quot;42.105694&quot;,&#xA;    &quot;Station longitude&quot;: &quot;12.640139&quot;,&#xA;    &quot;Station altitude&quot;: &quot;48.0 m&quot;,&#xA;    &quot;Regime&quot;: &quot;IMG&quot;,&#xA;    &quot;Matrix&quot;: &quot;precip&quot;,&#xA;    &quot;Laboratory code&quot;: &quot;IT01L&quot;,&#xA;    &quot;Instrument type&quot;: &quot;wet_only_sampler&quot;,&#xA;    &quot;Instrument manufacturer&quot;: &quot;Eigenbrodt&quot;,&#xA;    &quot;Instrument model&quot;: &quot;UNS130D&quot;,&#xA;    &quot;Instrument serial number&quot;: &quot;131247&quot;,&#xA;    &quot;Analytical laboratory code&quot;: &quot;IT01L&quot;,&#xA;    &quot;Standard method&quot;: &quot;SOP=EMEP_manual_v2014&quot;,&#xA;    &quot;Blank correction&quot;: &quot;Not blank corrected&quot;,&#xA;    &quot;Zero/negative values&quot;: &quot;None&quot;,&#xA;    &quot;QA1 measure ID&quot;: &quot;EMEP34&quot;,&#xA;    &quot;QA1 date&quot;: &quot;2016-12-09 UTC&quot;,&#xA;    &quot;QA1 outcome&quot;: &quot;pass&quot;,&#xA;    &quot;QA1 document name&quot;: &quot;Summary statistics EMEP laboratory intercalibration Round 34&quot;,&#xA;    &quot;QA1 document date&quot;: &quot;2017-03-08 UTC&quot;,&#xA;    &quot;QA1 document URL&quot;: &quot;http://www.nilu.no/projects/ccc/qameasure/emep34.pdf&quot;,&#xA;    &quot;Organization&quot;: &quot;IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, Italy&quot;,&#xA;    &quot;Framework acronym&quot;: &quot;EMEP&quot;,&#xA;    &quot;Framework name&quot;: &quot;European Monitoring and Evaluation Programme&quot;,&#xA;    &quot;Framework description&quot;: &quot;The European Monitoring and Evaluation Programme (EMEP) is a scientifically based and policy driven programme under the Convention on Long-range Transboundary Air Pollution (CLRTAP) for int'l co-operation to solve transboundary air pollution problems.&quot;,&#xA;    &quot;Framework contact name&quot;: &quot;Kjetil Tørseth&quot;,&#xA;    &quot;Framework contact email&quot;: &quot;kt@nilu.no&quot;,&#xA;    &quot;Originator&quot;: &quot;Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, \&quot;Area della Ricerca di Roma 1, Via Salaria km 29.300\&quot;, , 15, Monterotondo Stazione - Roma, Italy&quot;,&#xA;    &quot;Submitter&quot;: &quot;Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, \&quot;Area della Ricerca di Roma 1, Via Salaria km 29.300\&quot;, , 15, Monterotondo Stazione - Roma, Italy&quot;,&#xA;    &quot;Acknowledgement&quot;: &quot;Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu&quot;&#xA;}" />
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  <attribute name="history" value="None" />
  <attribute name="creator_url" value="ebas.nilu.no" />
  <attribute name="_CoordSysBuilder" value="ucar.nc2.internal.dataset.conv.CF1Convention" />
  <dimension name="time" length="365" />
  <dimension name="tbnds" length="2" />
  <dimension name="metadata_time" length="1" />
  <dimension name="precipitation_amount_qc_flags" length="1" />
  <dimension name="arsenic_qc_flags" length="1" />
  <dimension name="cadmium_qc_flags" length="1" />
  <dimension name="chromium_qc_flags" length="1" />
  <dimension name="copper_qc_flags" length="1" />
  <dimension name="lead_qc_flags" length="1" />
  <dimension name="nickel_qc_flags" length="1" />
  <dimension name="zinc_qc_flags" length="1" />
  <dimension name="ammonium_mg_N_per_l_qc_flags" length="1" />
  <dimension name="ammonium_mg_per_l_qc_flags" length="1" />
  <dimension name="calcium_qc_flags" length="1" />
  <dimension name="chloride_qc_flags" length="1" />
  <dimension name="conductivity_qc_flags" length="1" />
  <dimension name="magnesium_qc_flags" length="1" />
  <dimension name="nitrate_mg_N_per_l_qc_flags" length="1" />
  <dimension name="nitrate_mg_per_l_qc_flags" length="1" />
  <dimension name="pH_qc_flags" length="1" />
  <dimension name="potassium_qc_flags" length="1" />
  <dimension name="sodium_qc_flags" length="1" />
  <dimension name="sulphate_corrected_mg_S_per_l_qc_flags" length="1" />
  <dimension name="sulphate_corrected_mg_per_l_qc_flags" length="1" />
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  <dimension name="sulphate_total_mg_per_l_qc_flags" length="1" />
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    <attribute name="time_coverage_units" value="seconds" />
    <attribute name="time_coverage_resolution" value="86400.0" />
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    <attribute name="long_name" value="time bounds for measurement" />
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    <attribute name="long_name" value="time bounds for ebas metadata intervals" />
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    <attribute name="standard_name" value="lwe_thickness_of_precipitation_amount" />
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    <attribute name="ancillary_variables" value="precipitation_amount_qc precipitation_amount_ebasmetadata" />
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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="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
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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 framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
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    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="arsenic" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_arsenic_in_precipitation" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/l" />
    <attribute name="ancillary_variables" value="arsenic_qc arsenic_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260126144142" />
    <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="IT0001R" />
    <attribute name="ebas_platform_code" value="IT0001S" />
    <attribute name="ebas_station_name" value="Montelibretti" />
    <attribute name="ebas_station_latitude" value="42.105694" />
    <attribute name="ebas_station_longitude" value="12.640139" />
    <attribute name="ebas_station_altitude" value="48.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="arsenic" />
    <attribute name="ebas_unit" value="ug/l" />
    <attribute name="ebas_matrix" value="precip" />
    <attribute name="ebas_laboratory_code" value="IT01L" />
    <attribute name="ebas_instrument_type" value="wet_only_sampler" />
    <attribute name="ebas_instrument_name" value="wet_only_Montelibretti" />
    <attribute name="ebas_instrument_manufacturer" value="Eigenbrodt" />
    <attribute name="ebas_instrument_model" value="UNS130D" />
    <attribute name="ebas_instrument_serial_number" value="131247" />
    <attribute name="ebas_analytical_laboratory_code" value="IT01L" />
    <attribute name="ebas_analytical_measurement_technique" value="ICP-MS" />
    <attribute name="ebas_analytical_instrument_name" value="ICPMS_Montelibretti" />
    <attribute name="ebas_method_ref" value="IT01L_ICP-MS" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_detection_limit" value="0.0073 ug/l" />
    <attribute name="ebas_detection_limit_expl" value="Lower quantification limit, determined by taking 10 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values" value="None" />
    <attribute name="ebas_qa1_bias" value="-2.73 %" />
    <attribute name="ebas_qa1_variability" value="5.46 %" />
    <attribute name="ebas_organization" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, 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="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_submitter" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
    <attribute name="ebas_comment" value="Analytical instrument manufacturer and model (line 14)is Eigenbrodt UNS130D" />
  </variable>
  <variable name="arsenic_qc" shape="arsenic_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="arsenic_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="cadmium" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_cadmium_in_precipitation" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/l" />
    <attribute name="ancillary_variables" value="cadmium_qc cadmium_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260126144142" />
    <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="IT0001R" />
    <attribute name="ebas_platform_code" value="IT0001S" />
    <attribute name="ebas_station_name" value="Montelibretti" />
    <attribute name="ebas_station_latitude" value="42.105694" />
    <attribute name="ebas_station_longitude" value="12.640139" />
    <attribute name="ebas_station_altitude" value="48.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="cadmium" />
    <attribute name="ebas_unit" value="ug/l" />
    <attribute name="ebas_matrix" value="precip" />
    <attribute name="ebas_laboratory_code" value="IT01L" />
    <attribute name="ebas_instrument_type" value="wet_only_sampler" />
    <attribute name="ebas_instrument_name" value="wet_only_Montelibretti" />
    <attribute name="ebas_instrument_manufacturer" value="Eigenbrodt" />
    <attribute name="ebas_instrument_model" value="UNS130D" />
    <attribute name="ebas_instrument_serial_number" value="131247" />
    <attribute name="ebas_analytical_laboratory_code" value="IT01L" />
    <attribute name="ebas_analytical_measurement_technique" value="ICP-MS" />
    <attribute name="ebas_analytical_instrument_name" value="ICPMS_Montelibretti" />
    <attribute name="ebas_method_ref" value="IT01L_ICP-MS" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_detection_limit" value="0.0021 ug/l" />
    <attribute name="ebas_detection_limit_expl" value="Lower quantification limit, determined by taking 10 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values" value="None" />
    <attribute name="ebas_qa1_bias" value="-9.55 %" />
    <attribute name="ebas_qa1_variability" value="6.42 %" />
    <attribute name="ebas_organization" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, 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="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_submitter" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
    <attribute name="ebas_comment" value="Analytical instrument manufacturer and model (line 14)is Eigenbrodt UNS130D" />
  </variable>
  <variable name="cadmium_qc" shape="cadmium_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="cadmium_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="chromium" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_chromium_in_precipitation" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/l" />
    <attribute name="ancillary_variables" value="chromium_qc chromium_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260126144142" />
    <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="IT0001R" />
    <attribute name="ebas_platform_code" value="IT0001S" />
    <attribute name="ebas_station_name" value="Montelibretti" />
    <attribute name="ebas_station_latitude" value="42.105694" />
    <attribute name="ebas_station_longitude" value="12.640139" />
    <attribute name="ebas_station_altitude" value="48.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="chromium" />
    <attribute name="ebas_unit" value="ug/l" />
    <attribute name="ebas_matrix" value="precip" />
    <attribute name="ebas_laboratory_code" value="IT01L" />
    <attribute name="ebas_instrument_type" value="wet_only_sampler" />
    <attribute name="ebas_instrument_name" value="wet_only_Montelibretti" />
    <attribute name="ebas_instrument_manufacturer" value="Eigenbrodt" />
    <attribute name="ebas_instrument_model" value="UNS130D" />
    <attribute name="ebas_instrument_serial_number" value="131247" />
    <attribute name="ebas_analytical_laboratory_code" value="IT01L" />
    <attribute name="ebas_analytical_measurement_technique" value="ICP-MS" />
    <attribute name="ebas_analytical_instrument_name" value="ICPMS_Montelibretti" />
    <attribute name="ebas_method_ref" value="IT01L_ICP-MS" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_detection_limit" value="0.0086 ug/l" />
    <attribute name="ebas_detection_limit_expl" value="Lower quantification limit, determined by taking 10 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values" value="None" />
    <attribute name="ebas_qa1_bias" value="0.0 %" />
    <attribute name="ebas_qa1_variability" value="2.02 %" />
    <attribute name="ebas_organization" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, 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="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_submitter" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
    <attribute name="ebas_comment" value="Analytical instrument manufacturer and model (line 14)is Eigenbrodt UNS130D" />
  </variable>
  <variable name="chromium_qc" shape="chromium_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="chromium_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="copper" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_copper_in_precipitation" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/l" />
    <attribute name="ancillary_variables" value="copper_qc copper_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260126144142" />
    <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="IT0001R" />
    <attribute name="ebas_platform_code" value="IT0001S" />
    <attribute name="ebas_station_name" value="Montelibretti" />
    <attribute name="ebas_station_latitude" value="42.105694" />
    <attribute name="ebas_station_longitude" value="12.640139" />
    <attribute name="ebas_station_altitude" value="48.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="copper" />
    <attribute name="ebas_unit" value="ug/l" />
    <attribute name="ebas_matrix" value="precip" />
    <attribute name="ebas_laboratory_code" value="IT01L" />
    <attribute name="ebas_instrument_type" value="wet_only_sampler" />
    <attribute name="ebas_instrument_name" value="wet_only_Montelibretti" />
    <attribute name="ebas_instrument_manufacturer" value="Eigenbrodt" />
    <attribute name="ebas_instrument_model" value="UNS130D" />
    <attribute name="ebas_instrument_serial_number" value="131247" />
    <attribute name="ebas_analytical_laboratory_code" value="IT01L" />
    <attribute name="ebas_analytical_measurement_technique" value="ICP-MS" />
    <attribute name="ebas_analytical_instrument_name" value="ICPMS_Montelibretti" />
    <attribute name="ebas_method_ref" value="IT01L_ICP-MS" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_detection_limit" value="0.0274 ug/l" />
    <attribute name="ebas_detection_limit_expl" value="Lower quantification limit, determined by taking 10 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values" value="None" />
    <attribute name="ebas_qa1_bias" value="-0.48 %" />
    <attribute name="ebas_qa1_variability" value="2.23 %" />
    <attribute name="ebas_organization" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, 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="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_submitter" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
    <attribute name="ebas_comment" value="Analytical instrument manufacturer and model (line 14)is Eigenbrodt UNS130D" />
  </variable>
  <variable name="copper_qc" shape="copper_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="copper_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="lead" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_lead_in_precipitation" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/l" />
    <attribute name="ancillary_variables" value="lead_qc lead_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260126144142" />
    <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="IT0001R" />
    <attribute name="ebas_platform_code" value="IT0001S" />
    <attribute name="ebas_station_name" value="Montelibretti" />
    <attribute name="ebas_station_latitude" value="42.105694" />
    <attribute name="ebas_station_longitude" value="12.640139" />
    <attribute name="ebas_station_altitude" value="48.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="lead" />
    <attribute name="ebas_unit" value="ug/l" />
    <attribute name="ebas_matrix" value="precip" />
    <attribute name="ebas_laboratory_code" value="IT01L" />
    <attribute name="ebas_instrument_type" value="wet_only_sampler" />
    <attribute name="ebas_instrument_name" value="wet_only_Montelibretti" />
    <attribute name="ebas_instrument_manufacturer" value="Eigenbrodt" />
    <attribute name="ebas_instrument_model" value="UNS130D" />
    <attribute name="ebas_instrument_serial_number" value="131247" />
    <attribute name="ebas_analytical_laboratory_code" value="IT01L" />
    <attribute name="ebas_analytical_measurement_technique" value="ICP-MS" />
    <attribute name="ebas_analytical_instrument_name" value="ICPMS_Montelibretti" />
    <attribute name="ebas_method_ref" value="IT01L_ICP-MS" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_detection_limit" value="0.0331 ug/l" />
    <attribute name="ebas_detection_limit_expl" value="Lower quantification limit, determined by taking 10 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values" value="None" />
    <attribute name="ebas_qa1_bias" value="0.28 %" />
    <attribute name="ebas_qa1_variability" value="1.55 %" />
    <attribute name="ebas_organization" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, 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="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_submitter" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
    <attribute name="ebas_comment" value="Analytical instrument manufacturer and model (line 14)is Eigenbrodt UNS130D" />
  </variable>
  <variable name="lead_qc" shape="lead_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="lead_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nickel" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nickel_in_precipitation" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/l" />
    <attribute name="ancillary_variables" value="nickel_qc nickel_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260126144142" />
    <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="IT0001R" />
    <attribute name="ebas_platform_code" value="IT0001S" />
    <attribute name="ebas_station_name" value="Montelibretti" />
    <attribute name="ebas_station_latitude" value="42.105694" />
    <attribute name="ebas_station_longitude" value="12.640139" />
    <attribute name="ebas_station_altitude" value="48.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nickel" />
    <attribute name="ebas_unit" value="ug/l" />
    <attribute name="ebas_matrix" value="precip" />
    <attribute name="ebas_laboratory_code" value="IT01L" />
    <attribute name="ebas_instrument_type" value="wet_only_sampler" />
    <attribute name="ebas_instrument_name" value="wet_only_Montelibretti" />
    <attribute name="ebas_instrument_manufacturer" value="Eigenbrodt" />
    <attribute name="ebas_instrument_model" value="UNS130D" />
    <attribute name="ebas_instrument_serial_number" value="131247" />
    <attribute name="ebas_analytical_laboratory_code" value="IT01L" />
    <attribute name="ebas_analytical_measurement_technique" value="ICP-MS" />
    <attribute name="ebas_analytical_instrument_name" value="ICPMS_Montelibretti" />
    <attribute name="ebas_method_ref" value="IT01L_ICP-MS" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_detection_limit" value="0.0101 ug/l" />
    <attribute name="ebas_detection_limit_expl" value="Lower quantification limit, determined by taking 10 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values" value="None" />
    <attribute name="ebas_qa1_bias" value="0.0 %" />
    <attribute name="ebas_qa1_variability" value="1.44 %" />
    <attribute name="ebas_organization" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, 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="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_submitter" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
    <attribute name="ebas_comment" value="Analytical instrument manufacturer and model (line 14)is Eigenbrodt UNS130D" />
  </variable>
  <variable name="nickel_qc" shape="nickel_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="nickel_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="zinc" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_zinc_in_precipitation" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/l" />
    <attribute name="ancillary_variables" value="zinc_qc zinc_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260126144142" />
    <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="IT0001R" />
    <attribute name="ebas_platform_code" value="IT0001S" />
    <attribute name="ebas_station_name" value="Montelibretti" />
    <attribute name="ebas_station_latitude" value="42.105694" />
    <attribute name="ebas_station_longitude" value="12.640139" />
    <attribute name="ebas_station_altitude" value="48.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="zinc" />
    <attribute name="ebas_unit" value="ug/l" />
    <attribute name="ebas_matrix" value="precip" />
    <attribute name="ebas_laboratory_code" value="IT01L" />
    <attribute name="ebas_instrument_type" value="wet_only_sampler" />
    <attribute name="ebas_instrument_name" value="wet_only_Montelibretti" />
    <attribute name="ebas_instrument_manufacturer" value="Eigenbrodt" />
    <attribute name="ebas_instrument_model" value="UNS130D" />
    <attribute name="ebas_instrument_serial_number" value="131247" />
    <attribute name="ebas_analytical_laboratory_code" value="IT01L" />
    <attribute name="ebas_analytical_measurement_technique" value="ICP-MS" />
    <attribute name="ebas_analytical_instrument_name" value="ICPMS_Montelibretti" />
    <attribute name="ebas_method_ref" value="IT01L_ICP-MS" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_detection_limit" value="0.0841 ug/l" />
    <attribute name="ebas_detection_limit_expl" value="Lower quantification limit, determined by taking 10 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values" value="None" />
    <attribute name="ebas_qa1_bias" value="2.38 %" />
    <attribute name="ebas_qa1_variability" value="7.98 %" />
    <attribute name="ebas_organization" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, 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="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_submitter" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
    <attribute name="ebas_comment" value="Analytical instrument manufacturer and model (line 14)is Eigenbrodt UNS130D" />
  </variable>
  <variable name="zinc_qc" shape="zinc_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="zinc_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="ammonium_mg_N_per_l" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ammonium_in_precipitation" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="mg N/l" />
    <attribute name="ancillary_variables" value="ammonium_mg N_per_l_qc ammonium_mg N_per_l_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260126145005" />
    <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="IT0001R" />
    <attribute name="ebas_platform_code" value="IT0001S" />
    <attribute name="ebas_station_name" value="Montelibretti" />
    <attribute name="ebas_station_latitude" value="42.105694" />
    <attribute name="ebas_station_longitude" value="12.640139" />
    <attribute name="ebas_station_altitude" value="48.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ammonium" />
    <attribute name="ebas_unit" value="mg N/l" />
    <attribute name="ebas_matrix" value="precip" />
    <attribute name="ebas_laboratory_code" value="IT01L" />
    <attribute name="ebas_instrument_type" value="wet_only_sampler" />
    <attribute name="ebas_instrument_name" value="wet_only_Montlibretti" />
    <attribute name="ebas_instrument_manufacturer" value="Eigenbrodt" />
    <attribute name="ebas_instrument_model" value="UNS130D" />
    <attribute name="ebas_instrument_serial_number" value="131247" />
    <attribute name="ebas_analytical_laboratory_code" value="IT01L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="aquion_Montelibretti" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Scientific" />
    <attribute name="ebas_analytical_instrument_model" value="Dionex Aquion" />
    <attribute name="ebas_analytical_instrument_serial_number" value="190960093" />
    <attribute name="ebas_method_ref" value="IT01L_IC" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_detection_limit" value="0.01 mg N/l" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values" value="None" />
    <attribute name="ebas_qa1_bias" value="4.53 %" />
    <attribute name="ebas_qa1_variability" value="0.97 %" />
    <attribute name="ebas_organization" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, 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="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_submitter" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
    <attribute name="ebas_comment" value="Analytical instrument manufacturer and model (line 14)is Eigenbrodt UNS130D" />
  </variable>
  <variable name="ammonium_mg_N_per_l_qc" shape="ammonium_mg_N_per_l_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="ammonium_mg_N_per_l_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="ammonium_mg_per_l" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_ammonium_in_precipitation" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="mg/l" />
    <attribute name="ancillary_variables" value="ammonium_mg_per_l_qc ammonium_mg_per_l_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260126145005" />
    <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="IT0001R" />
    <attribute name="ebas_platform_code" value="IT0001S" />
    <attribute name="ebas_station_name" value="Montelibretti" />
    <attribute name="ebas_station_latitude" value="42.105694" />
    <attribute name="ebas_station_longitude" value="12.640139" />
    <attribute name="ebas_station_altitude" value="48.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="ammonium" />
    <attribute name="ebas_unit" value="mg/l" />
    <attribute name="ebas_matrix" value="precip" />
    <attribute name="ebas_laboratory_code" value="IT01L" />
    <attribute name="ebas_instrument_type" value="wet_only_sampler" />
    <attribute name="ebas_instrument_name" value="wet_only_Montlibretti" />
    <attribute name="ebas_instrument_manufacturer" value="Eigenbrodt" />
    <attribute name="ebas_instrument_model" value="UNS130D" />
    <attribute name="ebas_instrument_serial_number" value="131247" />
    <attribute name="ebas_analytical_laboratory_code" value="IT01L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="aquion_Montelibretti" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Scientific" />
    <attribute name="ebas_analytical_instrument_model" value="Dionex Aquion" />
    <attribute name="ebas_analytical_instrument_serial_number" value="190960093" />
    <attribute name="ebas_method_ref" value="IT01L_IC" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_detection_limit" value="0.0 mg/l" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values" value="None" />
    <attribute name="ebas_qa1_bias" value="4.53 %" />
    <attribute name="ebas_qa1_variability" value="0.97 %" />
    <attribute name="ebas_organization" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, 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="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_submitter" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
    <attribute name="ebas_comment" value="Analytical instrument manufacturer and model (line 14)is Eigenbrodt UNS130D -- Data converted on export from EBAS from 'mg N/l' to 'mg/l', conversion factor 1.288. Detection limit converted from '0.01 mg N/l' to '0.0 mg/l', conversion factor 1.288." />
  </variable>
  <variable name="ammonium_mg_per_l_qc" shape="ammonium_mg_per_l_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="ammonium_mg_per_l_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="calcium" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_calcium_in_precipitation" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="mg/l" />
    <attribute name="ancillary_variables" value="calcium_qc calcium_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260126145005" />
    <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="IT0001R" />
    <attribute name="ebas_platform_code" value="IT0001S" />
    <attribute name="ebas_station_name" value="Montelibretti" />
    <attribute name="ebas_station_latitude" value="42.105694" />
    <attribute name="ebas_station_longitude" value="12.640139" />
    <attribute name="ebas_station_altitude" value="48.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="calcium" />
    <attribute name="ebas_unit" value="mg/l" />
    <attribute name="ebas_matrix" value="precip" />
    <attribute name="ebas_laboratory_code" value="IT01L" />
    <attribute name="ebas_instrument_type" value="wet_only_sampler" />
    <attribute name="ebas_instrument_name" value="wet_only_Montlibretti" />
    <attribute name="ebas_instrument_manufacturer" value="Eigenbrodt" />
    <attribute name="ebas_instrument_model" value="UNS130D" />
    <attribute name="ebas_instrument_serial_number" value="131247" />
    <attribute name="ebas_analytical_laboratory_code" value="IT01L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="aquion_Montelibretti" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Scientific" />
    <attribute name="ebas_analytical_instrument_model" value="Dionex Aquion" />
    <attribute name="ebas_analytical_instrument_serial_number" value="190960093" />
    <attribute name="ebas_method_ref" value="IT01L_IC" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_detection_limit" value="0.01 mg/l" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values" value="None" />
    <attribute name="ebas_qa1_bias" value="6.64 %" />
    <attribute name="ebas_qa1_variability" value="2.97 %" />
    <attribute name="ebas_organization" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, 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="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_submitter" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
    <attribute name="ebas_comment" value="Analytical instrument manufacturer and model (line 14)is Eigenbrodt UNS130D" />
  </variable>
  <variable name="calcium_qc" shape="calcium_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="calcium_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="chloride" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_chloride_in_precipitation" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="mg/l" />
    <attribute name="ancillary_variables" value="chloride_qc chloride_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260126145005" />
    <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="IT0001R" />
    <attribute name="ebas_platform_code" value="IT0001S" />
    <attribute name="ebas_station_name" value="Montelibretti" />
    <attribute name="ebas_station_latitude" value="42.105694" />
    <attribute name="ebas_station_longitude" value="12.640139" />
    <attribute name="ebas_station_altitude" value="48.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="chloride" />
    <attribute name="ebas_unit" value="mg/l" />
    <attribute name="ebas_matrix" value="precip" />
    <attribute name="ebas_laboratory_code" value="IT01L" />
    <attribute name="ebas_instrument_type" value="wet_only_sampler" />
    <attribute name="ebas_instrument_name" value="wet_only_Montlibretti" />
    <attribute name="ebas_instrument_manufacturer" value="Eigenbrodt" />
    <attribute name="ebas_instrument_model" value="UNS130D" />
    <attribute name="ebas_instrument_serial_number" value="131247" />
    <attribute name="ebas_analytical_laboratory_code" value="IT01L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="aquion_Montelibretti" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Scientific" />
    <attribute name="ebas_analytical_instrument_model" value="Dionex Aquion" />
    <attribute name="ebas_analytical_instrument_serial_number" value="190960093" />
    <attribute name="ebas_method_ref" value="IT01L_IC" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_detection_limit" value="0.01 mg/l" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values" value="None" />
    <attribute name="ebas_qa1_bias" value="-6.44 %" />
    <attribute name="ebas_qa1_variability" value="2.97 %" />
    <attribute name="ebas_organization" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, 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="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_submitter" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
    <attribute name="ebas_comment" value="Analytical instrument manufacturer and model (line 14)is Eigenbrodt UNS130D" />
  </variable>
  <variable name="chloride_qc" shape="chloride_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="chloride_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="conductivity" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="conductivity_in_precipitation" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="uS/cm" />
    <attribute name="ancillary_variables" value="conductivity_qc conductivity_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260126145005" />
    <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="IT0001R" />
    <attribute name="ebas_platform_code" value="IT0001S" />
    <attribute name="ebas_station_name" value="Montelibretti" />
    <attribute name="ebas_station_latitude" value="42.105694" />
    <attribute name="ebas_station_longitude" value="12.640139" />
    <attribute name="ebas_station_altitude" value="48.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="conductivity" />
    <attribute name="ebas_unit" value="uS/cm" />
    <attribute name="ebas_matrix" value="precip" />
    <attribute name="ebas_laboratory_code" value="IT01L" />
    <attribute name="ebas_instrument_type" value="wet_only_sampler" />
    <attribute name="ebas_instrument_name" value="wet_only_Montlibretti" />
    <attribute name="ebas_instrument_manufacturer" value="Eigenbrodt" />
    <attribute name="ebas_instrument_model" value="UNS130D" />
    <attribute name="ebas_instrument_serial_number" value="131247" />
    <attribute name="ebas_analytical_laboratory_code" value="IT01L" />
    <attribute name="ebas_analytical_measurement_technique" value="pH_conductivity_meter" />
    <attribute name="ebas_analytical_instrument_name" value="pH_conductivity_meter_Montelibretti" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="HANNA" />
    <attribute name="ebas_analytical_instrument_model" value="HI 5521" />
    <attribute name="ebas_analytical_instrument_serial_number" value="07230019101" />
    <attribute name="ebas_method_ref" value="IT01L_pH_conductivity_meter_Montelibretti" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_detection_limit" value="0.1 uS/cm" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values" value="None" />
    <attribute name="ebas_organization" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, 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="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_submitter" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
    <attribute name="ebas_comment" value="Analytical instrument manufacturer and model (line 14)is Eigenbrodt UNS130D" />
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  <variable name="conductivity_qc" shape="conductivity_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="conductivity_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="magnesium" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_magnesium_in_precipitation" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="mg/l" />
    <attribute name="ancillary_variables" value="magnesium_qc magnesium_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260126145005" />
    <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="IT0001R" />
    <attribute name="ebas_platform_code" value="IT0001S" />
    <attribute name="ebas_station_name" value="Montelibretti" />
    <attribute name="ebas_station_latitude" value="42.105694" />
    <attribute name="ebas_station_longitude" value="12.640139" />
    <attribute name="ebas_station_altitude" value="48.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="magnesium" />
    <attribute name="ebas_unit" value="mg/l" />
    <attribute name="ebas_matrix" value="precip" />
    <attribute name="ebas_laboratory_code" value="IT01L" />
    <attribute name="ebas_instrument_type" value="wet_only_sampler" />
    <attribute name="ebas_instrument_name" value="wet_only_Montlibretti" />
    <attribute name="ebas_instrument_manufacturer" value="Eigenbrodt" />
    <attribute name="ebas_instrument_model" value="UNS130D" />
    <attribute name="ebas_instrument_serial_number" value="131247" />
    <attribute name="ebas_analytical_laboratory_code" value="IT01L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="aquion_Montelibretti" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Scientific" />
    <attribute name="ebas_analytical_instrument_model" value="Dionex Aquion" />
    <attribute name="ebas_analytical_instrument_serial_number" value="190960093" />
    <attribute name="ebas_method_ref" value="IT01L_IC" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
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    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values" value="None" />
    <attribute name="ebas_organization" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, 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="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_submitter" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
    <attribute name="ebas_comment" value="Analytical instrument manufacturer and model (line 14)is Eigenbrodt UNS130D" />
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  <variable name="magnesium_qc" shape="magnesium_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="magnesium_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nitrate_mg_N_per_l" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nitrate_in_precipitation" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="mg N/l" />
    <attribute name="ancillary_variables" value="nitrate_mg N_per_l_qc nitrate_mg N_per_l_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260126145005" />
    <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="IT0001R" />
    <attribute name="ebas_platform_code" value="IT0001S" />
    <attribute name="ebas_station_name" value="Montelibretti" />
    <attribute name="ebas_station_latitude" value="42.105694" />
    <attribute name="ebas_station_longitude" value="12.640139" />
    <attribute name="ebas_station_altitude" value="48.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrate" />
    <attribute name="ebas_unit" value="mg N/l" />
    <attribute name="ebas_matrix" value="precip" />
    <attribute name="ebas_laboratory_code" value="IT01L" />
    <attribute name="ebas_instrument_type" value="wet_only_sampler" />
    <attribute name="ebas_instrument_name" value="wet_only_Montlibretti" />
    <attribute name="ebas_instrument_manufacturer" value="Eigenbrodt" />
    <attribute name="ebas_instrument_model" value="UNS130D" />
    <attribute name="ebas_instrument_serial_number" value="131247" />
    <attribute name="ebas_analytical_laboratory_code" value="IT01L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="aquion_Montelibretti" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Scientific" />
    <attribute name="ebas_analytical_instrument_model" value="Dionex Aquion" />
    <attribute name="ebas_analytical_instrument_serial_number" value="190960093" />
    <attribute name="ebas_method_ref" value="IT01L_IC" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_detection_limit" value="0.01 mg N/l" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values" value="None" />
    <attribute name="ebas_qa1_bias" value="5.7 %" />
    <attribute name="ebas_qa1_variability" value="4.6 %" />
    <attribute name="ebas_organization" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, 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="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_submitter" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
    <attribute name="ebas_comment" value="Analytical instrument manufacturer and model (line 14)is Eigenbrodt UNS130D" />
  </variable>
  <variable name="nitrate_mg_N_per_l_qc" shape="nitrate_mg_N_per_l_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="nitrate_mg_N_per_l_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="nitrate_mg_per_l" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_nitrate_in_precipitation" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="mg/l" />
    <attribute name="ancillary_variables" value="nitrate_mg_per_l_qc nitrate_mg_per_l_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260126145005" />
    <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="IT0001R" />
    <attribute name="ebas_platform_code" value="IT0001S" />
    <attribute name="ebas_station_name" value="Montelibretti" />
    <attribute name="ebas_station_latitude" value="42.105694" />
    <attribute name="ebas_station_longitude" value="12.640139" />
    <attribute name="ebas_station_altitude" value="48.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="nitrate" />
    <attribute name="ebas_unit" value="mg/l" />
    <attribute name="ebas_matrix" value="precip" />
    <attribute name="ebas_laboratory_code" value="IT01L" />
    <attribute name="ebas_instrument_type" value="wet_only_sampler" />
    <attribute name="ebas_instrument_name" value="wet_only_Montlibretti" />
    <attribute name="ebas_instrument_manufacturer" value="Eigenbrodt" />
    <attribute name="ebas_instrument_model" value="UNS130D" />
    <attribute name="ebas_instrument_serial_number" value="131247" />
    <attribute name="ebas_analytical_laboratory_code" value="IT01L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="aquion_Montelibretti" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Scientific" />
    <attribute name="ebas_analytical_instrument_model" value="Dionex Aquion" />
    <attribute name="ebas_analytical_instrument_serial_number" value="190960093" />
    <attribute name="ebas_method_ref" value="IT01L_IC" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_detection_limit" value="0.0 mg/l" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values" value="None" />
    <attribute name="ebas_qa1_bias" value="5.7 %" />
    <attribute name="ebas_qa1_variability" value="4.6 %" />
    <attribute name="ebas_organization" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, 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="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_submitter" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
    <attribute name="ebas_comment" value="Analytical instrument manufacturer and model (line 14)is Eigenbrodt UNS130D -- Data converted on export from EBAS from 'mg N/l' to 'mg/l', conversion factor 4.427. Detection limit converted from '0.01 mg N/l' to '0.0 mg/l', conversion factor 4.427." />
  </variable>
  <variable name="nitrate_mg_per_l_qc" shape="nitrate_mg_per_l_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="nitrate_mg_per_l_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="pH" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_pH_in_precipitation" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="pH units" />
    <attribute name="ancillary_variables" value="pH_qc pH_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260126145005" />
    <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="IT0001R" />
    <attribute name="ebas_platform_code" value="IT0001S" />
    <attribute name="ebas_station_name" value="Montelibretti" />
    <attribute name="ebas_station_latitude" value="42.105694" />
    <attribute name="ebas_station_longitude" value="12.640139" />
    <attribute name="ebas_station_altitude" value="48.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="pH" />
    <attribute name="ebas_unit" value="pH units" />
    <attribute name="ebas_matrix" value="precip" />
    <attribute name="ebas_laboratory_code" value="IT01L" />
    <attribute name="ebas_instrument_type" value="wet_only_sampler" />
    <attribute name="ebas_instrument_name" value="wet_only_Montlibretti" />
    <attribute name="ebas_instrument_manufacturer" value="Eigenbrodt" />
    <attribute name="ebas_instrument_model" value="UNS130D" />
    <attribute name="ebas_instrument_serial_number" value="131247" />
    <attribute name="ebas_analytical_laboratory_code" value="IT01L" />
    <attribute name="ebas_analytical_measurement_technique" value="pH_conductivity_meter" />
    <attribute name="ebas_analytical_instrument_name" value="pH_meter_Montelibretti" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="HANNA" />
    <attribute name="ebas_analytical_instrument_model" value="HI 5521" />
    <attribute name="ebas_analytical_instrument_serial_number" value="07230019101" />
    <attribute name="ebas_method_ref" value="IT01L_pH_meter_Montelibretti" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_detection_limit" value="0.01 pH units" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values" value="None" />
    <attribute name="ebas_organization" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, 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="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_submitter" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
    <attribute name="ebas_comment" value="Analytical instrument manufacturer and model (line 14)is Eigenbrodt UNS130D" />
  </variable>
  <variable name="pH_qc" shape="pH_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="pH_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="potassium" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_potassium_in_precipitation" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="mg/l" />
    <attribute name="ancillary_variables" value="potassium_qc potassium_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260126145005" />
    <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="IT0001R" />
    <attribute name="ebas_platform_code" value="IT0001S" />
    <attribute name="ebas_station_name" value="Montelibretti" />
    <attribute name="ebas_station_latitude" value="42.105694" />
    <attribute name="ebas_station_longitude" value="12.640139" />
    <attribute name="ebas_station_altitude" value="48.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="potassium" />
    <attribute name="ebas_unit" value="mg/l" />
    <attribute name="ebas_matrix" value="precip" />
    <attribute name="ebas_laboratory_code" value="IT01L" />
    <attribute name="ebas_instrument_type" value="wet_only_sampler" />
    <attribute name="ebas_instrument_name" value="wet_only_Montlibretti" />
    <attribute name="ebas_instrument_manufacturer" value="Eigenbrodt" />
    <attribute name="ebas_instrument_model" value="UNS130D" />
    <attribute name="ebas_instrument_serial_number" value="131247" />
    <attribute name="ebas_analytical_laboratory_code" value="IT01L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="aquion_Montelibretti" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Scientific" />
    <attribute name="ebas_analytical_instrument_model" value="Dionex Aquion" />
    <attribute name="ebas_analytical_instrument_serial_number" value="190960093" />
    <attribute name="ebas_method_ref" value="IT01L_IC" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_detection_limit" value="0.01 mg/l" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values" value="None" />
    <attribute name="ebas_qa1_bias" value="-2.2 %" />
    <attribute name="ebas_qa1_variability" value="2.3 %" />
    <attribute name="ebas_organization" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, 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="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_submitter" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
    <attribute name="ebas_comment" value="Analytical instrument manufacturer and model (line 14)is Eigenbrodt UNS130D" />
  </variable>
  <variable name="potassium_qc" shape="potassium_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="potassium_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="sodium" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_sodium_in_precipitation" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="mg/l" />
    <attribute name="ancillary_variables" value="sodium_qc sodium_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260126145005" />
    <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="IT0001R" />
    <attribute name="ebas_platform_code" value="IT0001S" />
    <attribute name="ebas_station_name" value="Montelibretti" />
    <attribute name="ebas_station_latitude" value="42.105694" />
    <attribute name="ebas_station_longitude" value="12.640139" />
    <attribute name="ebas_station_altitude" value="48.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="sodium" />
    <attribute name="ebas_unit" value="mg/l" />
    <attribute name="ebas_matrix" value="precip" />
    <attribute name="ebas_laboratory_code" value="IT01L" />
    <attribute name="ebas_instrument_type" value="wet_only_sampler" />
    <attribute name="ebas_instrument_name" value="wet_only_Montlibretti" />
    <attribute name="ebas_instrument_manufacturer" value="Eigenbrodt" />
    <attribute name="ebas_instrument_model" value="UNS130D" />
    <attribute name="ebas_instrument_serial_number" value="131247" />
    <attribute name="ebas_analytical_laboratory_code" value="IT01L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="aquion_Montelibretti" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Scientific" />
    <attribute name="ebas_analytical_instrument_model" value="Dionex Aquion" />
    <attribute name="ebas_analytical_instrument_serial_number" value="190960093" />
    <attribute name="ebas_method_ref" value="IT01L_IC" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_detection_limit" value="0.01 mg/l" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values" value="None" />
    <attribute name="ebas_qa1_bias" value="2.8 %" />
    <attribute name="ebas_qa1_variability" value="1.9 %" />
    <attribute name="ebas_organization" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, 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="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_submitter" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
    <attribute name="ebas_comment" value="Analytical instrument manufacturer and model (line 14)is Eigenbrodt UNS130D" />
  </variable>
  <variable name="sodium_qc" shape="sodium_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="sodium_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="sulphate_corrected_mg_S_per_l" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_sulphate_corrected_for_seaspray_expressed_as_sulphur_in_precipitation" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="ug/m3" />
    <attribute name="ancillary_variables" value="sulphate_corrected_mg S_per_l_qc sulphate_corrected_mg S_per_l_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260126145005" />
    <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="IT0001R" />
    <attribute name="ebas_platform_code" value="IT0001S" />
    <attribute name="ebas_station_name" value="Montelibretti" />
    <attribute name="ebas_station_latitude" value="42.105694" />
    <attribute name="ebas_station_longitude" value="12.640139" />
    <attribute name="ebas_station_altitude" value="48.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="sulphate_corrected" />
    <attribute name="ebas_unit" value="mg S/l" />
    <attribute name="ebas_matrix" value="precip" />
    <attribute name="ebas_laboratory_code" value="IT01L" />
    <attribute name="ebas_instrument_type" value="wet_only_sampler" />
    <attribute name="ebas_instrument_name" value="wet_only_Montlibretti" />
    <attribute name="ebas_instrument_manufacturer" value="Eigenbrodt" />
    <attribute name="ebas_instrument_model" value="UNS130D" />
    <attribute name="ebas_instrument_serial_number" value="131247" />
    <attribute name="ebas_analytical_laboratory_code" value="IT01L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="aquion_Montelibretti" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Scientific" />
    <attribute name="ebas_analytical_instrument_model" value="Dionex Aquion" />
    <attribute name="ebas_analytical_instrument_serial_number" value="190960093" />
    <attribute name="ebas_method_ref" value="IT01L_IC" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_detection_limit" value="0.01 mg S/l" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values" value="None" />
    <attribute name="ebas_qa1_bias" value="-1.32 %" />
    <attribute name="ebas_qa1_variability" value="1.05 %" />
    <attribute name="ebas_organization" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, 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="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_submitter" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
    <attribute name="ebas_comment" value="Analytical instrument manufacturer and model (line 14)is Eigenbrodt UNS130D" />
  </variable>
  <variable name="sulphate_corrected_mg_S_per_l_qc" shape="sulphate_corrected_mg_S_per_l_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="sulphate_corrected_mg_S_per_l_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="sulphate_corrected_mg_per_l" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_sulphate_corrected_in_precipitation" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="mg/l" />
    <attribute name="ancillary_variables" value="sulphate_corrected_mg_per_l_qc sulphate_corrected_mg_per_l_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260126145005" />
    <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="IT0001R" />
    <attribute name="ebas_platform_code" value="IT0001S" />
    <attribute name="ebas_station_name" value="Montelibretti" />
    <attribute name="ebas_station_latitude" value="42.105694" />
    <attribute name="ebas_station_longitude" value="12.640139" />
    <attribute name="ebas_station_altitude" value="48.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="sulphate_corrected" />
    <attribute name="ebas_unit" value="mg/l" />
    <attribute name="ebas_matrix" value="precip" />
    <attribute name="ebas_laboratory_code" value="IT01L" />
    <attribute name="ebas_instrument_type" value="wet_only_sampler" />
    <attribute name="ebas_instrument_name" value="wet_only_Montlibretti" />
    <attribute name="ebas_instrument_manufacturer" value="Eigenbrodt" />
    <attribute name="ebas_instrument_model" value="UNS130D" />
    <attribute name="ebas_instrument_serial_number" value="131247" />
    <attribute name="ebas_analytical_laboratory_code" value="IT01L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="aquion_Montelibretti" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Scientific" />
    <attribute name="ebas_analytical_instrument_model" value="Dionex Aquion" />
    <attribute name="ebas_analytical_instrument_serial_number" value="190960093" />
    <attribute name="ebas_method_ref" value="IT01L_IC" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_detection_limit" value="0.0 mg/l" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values" value="None" />
    <attribute name="ebas_qa1_bias" value="-1.32 %" />
    <attribute name="ebas_qa1_variability" value="1.05 %" />
    <attribute name="ebas_organization" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, 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="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_submitter" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
    <attribute name="ebas_comment" value="Analytical instrument manufacturer and model (line 14)is Eigenbrodt UNS130D -- Data converted on export from EBAS from 'mg S/l' to 'mg/l', conversion factor 2.996. Detection limit converted from '0.01 mg S/l' to '0.0 mg/l', conversion factor 2.996." />
  </variable>
  <variable name="sulphate_corrected_mg_per_l_qc" shape="sulphate_corrected_mg_per_l_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="sulphate_corrected_mg_per_l_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="sulphate_total_mg_S_per_l" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_sulphate_total_in_precipitation" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="mg S/l" />
    <attribute name="ancillary_variables" value="sulphate_total_mg S_per_l_qc sulphate_total_mg S_per_l_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260126145005" />
    <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="IT0001R" />
    <attribute name="ebas_platform_code" value="IT0001S" />
    <attribute name="ebas_station_name" value="Montelibretti" />
    <attribute name="ebas_station_latitude" value="42.105694" />
    <attribute name="ebas_station_longitude" value="12.640139" />
    <attribute name="ebas_station_altitude" value="48.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="sulphate_total" />
    <attribute name="ebas_unit" value="mg S/l" />
    <attribute name="ebas_matrix" value="precip" />
    <attribute name="ebas_laboratory_code" value="IT01L" />
    <attribute name="ebas_instrument_type" value="wet_only_sampler" />
    <attribute name="ebas_instrument_name" value="wet_only_Montlibretti" />
    <attribute name="ebas_instrument_manufacturer" value="Eigenbrodt" />
    <attribute name="ebas_instrument_model" value="UNS130D" />
    <attribute name="ebas_instrument_serial_number" value="131247" />
    <attribute name="ebas_analytical_laboratory_code" value="IT01L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="aquion_Montelibretti" />
    <attribute name="ebas_analytical_instrument_manufacturer" value="Thermo Scientific" />
    <attribute name="ebas_analytical_instrument_model" value="Dionex Aquion" />
    <attribute name="ebas_analytical_instrument_serial_number" value="190960093" />
    <attribute name="ebas_method_ref" value="IT01L_IC" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_detection_limit" value="0.01 mg S/l" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values" value="None" />
    <attribute name="ebas_qa1_bias" value="-1.32 %" />
    <attribute name="ebas_qa1_variability" value="1.05 %" />
    <attribute name="ebas_organization" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, 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="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_submitter" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
    <attribute name="ebas_comment" value="Analytical instrument manufacturer and model (line 14)is Eigenbrodt UNS130D" />
  </variable>
  <variable name="sulphate_total_mg_S_per_l_qc" shape="sulphate_total_mg_S_per_l_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="sulphate_total_mg_S_per_l_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="sulphate_total_mg_per_l" shape="time" type="double">
    <attribute name="_FillValue" type="double" value="NaN" />
    <attribute name="standard_name" value="mass_concentration_of_sulphate_total_in_precipitation" />
    <attribute name="missing_value" type="double" value="NaN" />
    <attribute name="units" value="mg/l" />
    <attribute name="ancillary_variables" value="sulphate_total_mg_per_l_qc sulphate_total_mg_per_l_ebasmetadata" />
    <attribute name="cell_methods" value="time: mean" />
    <attribute name="ebas_data_license" value="https://creativecommons.org/licenses/by/4.0/" />
    <attribute name="ebas_revision_date" value="20260126145005" />
    <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="IT0001R" />
    <attribute name="ebas_platform_code" value="IT0001S" />
    <attribute name="ebas_station_name" value="Montelibretti" />
    <attribute name="ebas_station_latitude" value="42.105694" />
    <attribute name="ebas_station_longitude" value="12.640139" />
    <attribute name="ebas_station_altitude" value="48.0 m" />
    <attribute name="ebas_regime" value="IMG" />
    <attribute name="ebas_component" value="sulphate_total" />
    <attribute name="ebas_unit" value="mg/l" />
    <attribute name="ebas_matrix" value="precip" />
    <attribute name="ebas_laboratory_code" value="IT01L" />
    <attribute name="ebas_instrument_type" value="wet_only_sampler" />
    <attribute name="ebas_instrument_name" value="wet_only_Montlibretti" />
    <attribute name="ebas_instrument_manufacturer" value="Eigenbrodt" />
    <attribute name="ebas_instrument_model" value="UNS130D" />
    <attribute name="ebas_instrument_serial_number" value="131247" />
    <attribute name="ebas_analytical_laboratory_code" value="IT01L" />
    <attribute name="ebas_analytical_measurement_technique" value="IC" />
    <attribute name="ebas_analytical_instrument_name" value="aquion_Montelibretti" />
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    <attribute name="ebas_analytical_instrument_model" value="Dionex Aquion" />
    <attribute name="ebas_analytical_instrument_serial_number" value="190960093" />
    <attribute name="ebas_method_ref" value="IT01L_IC" />
    <attribute name="ebas_standard_method" value="SOP=EMEP_manual_v2014" />
    <attribute name="ebas_blank_correction" value="Not blank corrected" />
    <attribute name="ebas_detection_limit" value="0.0 mg/l" />
    <attribute name="ebas_detection_limit_expl" value="Determined by taking 3 times standard deviation of ensemble of laboratory blanks" />
    <attribute name="ebas_zero_negative_values" value="None" />
    <attribute name="ebas_qa1_bias" value="-1.32 %" />
    <attribute name="ebas_qa1_variability" value="1.05 %" />
    <attribute name="ebas_organization" value="IT01L, National Research Council, CNR, Institute of Atmospheric Pollution Research, Via Salaria Km. 29.300, CP 10 - 00015 - Monterotondo Stazione, , Roma, Italy" />
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    <attribute name="ebas_framework_name" value="European Monitoring and Evaluation Programme" />
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    <attribute name="ebas_framework_contact_name" value="Kjetil Tørseth" />
    <attribute name="ebas_framework_contact_email" value="kt@nilu.no" />
    <attribute name="ebas_originator" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_submitter" value="Tofful, Luca, luca.tofful@cnr.it, National Research Council, CNR, Institute of Atmospheric Pollution Research, &quot;Area della Ricerca di Roma 1, Via Salaria km 29.300&quot;, , 15, Monterotondo Stazione - Roma, Italy" />
    <attribute name="ebas_acknowledgement" value="Data used in this &lt;study/report/figure/etc.&gt; were accessed from EBAS (https://ebas.nilu.no) hosted by NILU. Specifically, the use included data affiliated with the framework: EMEP. Ms. Elena Rantica, Ms. Giulia Zazzu" />
    <attribute name="ebas_comment" value="Analytical instrument manufacturer and model (line 14)is Eigenbrodt UNS130D -- Data converted on export from EBAS from 'mg S/l' to 'mg/l', conversion factor 2.996. Detection limit converted from '0.01 mg S/l' to '0.0 mg/l', conversion factor 2.996." />
  </variable>
  <variable name="sulphate_total_mg_per_l_qc" shape="sulphate_total_mg_per_l_qc_flags time" type="int">
    <attribute name="_FillValue" type="int" value="0" />
    <attribute name="standard_name" value="status_flag" />
    <attribute name="missing_value" type="int" value="0" />
    <attribute name="units" value="1" />
  </variable>
  <variable name="sulphate_total_mg_per_l_ebasmetadata" shape="metadata_time" type="String">
    <attribute name="long_name" value="ebas metadata for different time intervals; json encoded" />
  </variable>
  <variable name="time" shape="time" type="double">
    <attribute name="long_name" value="time of measurement" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01 00:00:00 UTC" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
    <attribute name="bounds" value="time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
  <variable name="metadata_time" shape="metadata_time" type="double">
    <attribute name="long_name" value="time of ebas metadata intervals" />
    <attribute name="standard_name" value="time" />
    <attribute name="units" value="days since 1900-01-01 00:00:00 UTC" />
    <attribute name="axis" value="T" />
    <attribute name="calendar" value="gregorian" />
    <attribute name="bounds" value="metadata_time_bnds" />
    <attribute name="_CoordinateAxisType" value="Time" />
  </variable>
</netcdf>
