{
  "snapshot_id": "approved-static-c6015be852c3d22b",
  "page_version": "445815ce84be943018408e6e98bcde1c",
  "content_date": "2026-09-29",
  "schema_version": "immigrationdb-report-dataset-v1",
  "generated_at": "2026-09-29",
  "citation": {
    "@type": "CreativeWork",
    "@id": "https://immigrationdb.com/reports/denmark-cities-with-cleanest-air/#citation",
    "schema_version": "immigrationdb-citation-v1",
    "citation_type": "ImmigrationDB compilation",
    "canonical_url": "https://immigrationdb.com/reports/denmark-cities-with-cleanest-air/",
    "title": "Cities with cleanest air in Denmark",
    "author": {
      "name": "ImmigrationDB",
      "url": "https://immigrationdb.com/"
    },
    "publisher": {
      "name": "ImmigrationDB",
      "url": "https://immigrationdb.com/"
    },
    "snapshot_id": "approved-static-c6015be852c3d22b",
    "version": "445815ce84be943018408e6e98bcde1c",
    "retrieval_date": "2026-09-29",
    "build_date": "2026-09-29",
    "compilation_license": {
      "name": "CC BY 4.0",
      "url": "https://creativecommons.org/licenses/by/4.0/",
      "terms_url": "https://immigrationdb.com/about/copyright/"
    },
    "formats": {
      "apa": "ImmigrationDB. (2026, September 29). Cities with cleanest air in Denmark [ImmigrationDB compilation; version 445815ce84be943018408e6e98bcde1c]. ImmigrationDB. https://immigrationdb.com/reports/denmark-cities-with-cleanest-air/ Retrieved 2026-09-29. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/",
      "bibtex": "@misc{immigrationdb_immigrationdb_cities-with-cleanest-air-in-denmark_dd267463f2ff,\n  author = {ImmigrationDB},\n  title = {Cities with cleanest air in Denmark},\n  publisher = {ImmigrationDB},\n  year = {2026},\n  date = {2026-09-29},\n  version = {445815ce84be943018408e6e98bcde1c},\n  url = {https://immigrationdb.com/reports/denmark-cities-with-cleanest-air/},\n  note = {Retrieved 2026-09-29. ImmigrationDB compilation. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/},\n}",
      "markdown": "[Cities with cleanest air in Denmark](https://immigrationdb.com/reports/denmark-cities-with-cleanest-air/) — ImmigrationDB; ImmigrationDB; version 445815ce84be943018408e6e98bcde1c; retrieved 2026-09-29; built 2026-09-29."
    },
    "boundary_note": "This citation identifies the ImmigrationDB compilation/page. Underlying source publishers and datasets retain their own terms; inspect the Sources section and cite those records separately."
  },
  "underlying_source_references": [
    {
      "source_id": "633:source:209e11d09aef94e45aae98fc6ac9b915",
      "source_url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D%27DK%27%20AND%20AirPollutant%3D%27PM2.5%27%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json",
      "source_title": "EEA air quality statistics — DK PM2.5 annual mean 2024 (station \"Hvidover II\")",
      "publisher": "European Environment Agency (EEA)",
      "source_quality": "verified",
      "last_checked": "2026-08-01"
    },
    {
      "source_id": "source-541133bc8b23",
      "source_url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D%27DK%27+AND+AirPollutant%3D%27PM2.5%27+AND+YearOfStatistics%3D2024&outFields=AirPollutant%2CAirPollutionLevel%2CCountry_ISO%2CStationName%2CYearOfStatistics%2CUnitOfAirpollutionLevel%2CReportingMetric%2CLatitudeOfMeasurementStation%2CLongitudeOfMeasurementStation%2CDataCoverage%2CPreliminary&returnGeometry=false&f=json",
      "source_title": "European Environment Agency (EEA)",
      "publisher": "European Environment Agency (EEA)",
      "source_quality": "verified",
      "last_checked": "2026-08-06"
    },
    {
      "source_id": "source-ea117e63a17c",
      "source_url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query",
      "source_title": "European Environment Agency",
      "publisher": "European Environment Agency",
      "source_quality": "verified",
      "last_checked": "2026-08-03"
    },
    {
      "source_id": "source-e6424f21dc7d",
      "source_url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=AirPollutant%3D%27PM2.5%27+AND+YearOfStatistics%3D2024&outFields=AirPollutant%2CAirPollutionLevel%2CCountry_ISO%2CStationName%2CAreaOfMeasurementStation%2CYearOfStatistics%2CUnitOfAirpollutionLevel%2CTypeOfMeasurementStation%2CDataCoverage%2CReportingMetric%2CLatitudeOfMeasurementStation%2CLongitudeOfMeasurementStation&returnGeometry=false&resultRecordCount=1000&resultOffset=0&f=json",
      "source_title": "EEA Air Quality Annual Statistics — validated PM2.5 station data",
      "publisher": "European Environment Agency",
      "source_quality": "verified",
      "last_checked": "2026-07-26"
    },
    {
      "source_id": "source-6438349938e7",
      "source_url": "https://www.eea.europa.eu/en/topics/in-depth/air-pollution/european-city-air-quality-viewer/city-trend-viewer",
      "source_title": "EEA City Trend — annual PM2.5 mean within city administrative boundaries",
      "publisher": "European Environment Agency",
      "source_quality": "verified",
      "last_checked": "2026-07-27"
    }
  ],
  "report": {
    "schema_version": "immigrationdb-generated-report-v1",
    "canonical_slug": "denmark-cities-with-cleanest-air",
    "canonical_path": "/reports/denmark-cities-with-cleanest-air/",
    "title": "Cities with cleanest air in Denmark",
    "question": "Cities with cleanest air in Denmark",
    "short_answer": "Albertslund, Denmark has the lowest pm2.5 — annual mean of the 30 cities compared: 6 µg/m³ (EEA air quality statistics — DK PM2.5 annual mean 2024 (station \"Hvidover II\"), 2024-12-31).",
    "summary": "Denmark cities ranked by annual PM2.5 concentration, not by current readings.",
    "report_type": "data_driven_report",
    "scope": "city",
    "status": "accepted",
    "indexability": "indexable",
    "population_floor": 20000,
    "excluded_counts": {
      "population_floor": 39
    },
    "not_advice_disclaimer": "This ranking is a source-backed reference. Read the source, geographic grain and observation date before comparing rows.",
    "methodology_id": "methodology-denmark-cities-with-cleanest-air-v1",
    "methodology": {
      "summary": "Every row is a published pm2.5 — annual mean observation, ranked lowest first. The values were observed in 2024. A place appears only when it publishes this exact metric, so an absent place means missing data rather than a low value. Only published cities with at least 20,000 residents and city-level observations qualify.",
      "formula": "air_quality_pm25_annual_ug_m3 asc",
      "assumptions": [
        "Source definitions, geographic grain and observation period remain visible for every row."
      ],
      "exclusions": [
        "Supplemental sources, null values, incompatible units, rows without direct source URLs, places below the population floor, non-city observations and copied values are excluded."
      ],
      "source_policy": "Verified sources with direct URL and visible scope"
    },
    "freshness": {
      "last_checked": "2026-08-06",
      "status": "generated_from_current_reusable_facts",
      "field_dates_visible": true,
      "verified_at": "2026-08-06"
    },
    "rows": [
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:albertslund",
        "label": "Albertslund, Denmark",
        "canonical_path": "/cities/dk/albertslund/",
        "country_code": "DK",
        "population_total": 28117,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "nearest_station",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "633:source:209e11d09aef94e45aae98fc6ac9b915"
        ],
        "evidence": [
          {
            "source_id": "633:source:209e11d09aef94e45aae98fc6ac9b915",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'DK'%20AND%20AirPollutant%3D'PM2.5'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: nearest_station",
            "retrieved_at": "2026-08-01"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:ballerup",
        "label": "Ballerup, Denmark",
        "canonical_path": "/cities/dk/ballerup/",
        "country_code": "DK",
        "population_total": 52939,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "nearest_station",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "633:source:209e11d09aef94e45aae98fc6ac9b915"
        ],
        "evidence": [
          {
            "source_id": "633:source:209e11d09aef94e45aae98fc6ac9b915",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'DK'%20AND%20AirPollutant%3D'PM2.5'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: nearest_station",
            "retrieved_at": "2026-08-01"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:brondby",
        "label": "Brøndby, Denmark",
        "canonical_path": "/cities/dk/brondby/",
        "country_code": "DK",
        "population_total": 40990,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "nearest_station",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "633:source:209e11d09aef94e45aae98fc6ac9b915"
        ],
        "evidence": [
          {
            "source_id": "633:source:209e11d09aef94e45aae98fc6ac9b915",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'DK'%20AND%20AirPollutant%3D'PM2.5'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: nearest_station",
            "retrieved_at": "2026-08-01"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:bronderslev",
        "label": "Brønderslev, Denmark",
        "canonical_path": "/cities/dk/bronderslev/",
        "country_code": "DK",
        "population_total": 36706,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "nearest_station",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "633:source:b1cd9366f10b3fad3d3015cb99ac4f1c"
        ],
        "evidence": [
          {
            "source_id": "633:source:b1cd9366f10b3fad3d3015cb99ac4f1c",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'DK'%20AND%20AirPollutant%3D'PM2.5'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: nearest_station",
            "retrieved_at": "2026-08-01"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:egedal",
        "label": "Egedal, Denmark",
        "canonical_path": "/cities/dk/egedal/",
        "country_code": "DK",
        "population_total": 45563,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "nearest_station",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "source-541133bc8b23"
        ],
        "evidence": [
          {
            "source_id": "source-541133bc8b23",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D%27DK%27+AND+AirPollutant%3D%27PM2.5%27+AND+YearOfStatistics%3D2024&outFields=AirPollutant%2CAirPollutionLevel%2CCountry_ISO%2CStationName%2CYearOfStatistics%2CUnitOfAirpollutionLevel%2CReportingMetric%2CLatitudeOfMeasurementStation%2CLongitudeOfMeasurementStation%2CDataCoverage%2CPreliminary&returnGeometry=false&f=json",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: nearest_station",
            "retrieved_at": "2026-08-06"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:favrskov",
        "label": "Favrskov, Denmark",
        "canonical_path": "/cities/dk/favrskov/",
        "country_code": "DK",
        "population_total": 49359,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "nearest_station",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "633:source:b459d656db2ca54989b2bc3a44d7fa73"
        ],
        "evidence": [
          {
            "source_id": "633:source:b459d656db2ca54989b2bc3a44d7fa73",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'DK'%20AND%20AirPollutant%3D'PM2.5'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: nearest_station",
            "retrieved_at": "2026-08-01"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:fredensborg",
        "label": "Fredensborg, Denmark",
        "canonical_path": "/cities/dk/fredensborg/",
        "country_code": "DK",
        "population_total": 42186,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "city",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "source-ea117e63a17c"
        ],
        "evidence": [
          {
            "source_id": "source-ea117e63a17c",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: city",
            "retrieved_at": "2026-08-03"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:frederikssund",
        "label": "Frederikssund, Denmark",
        "canonical_path": "/cities/dk/frederikssund/",
        "country_code": "DK",
        "population_total": 47052,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "nearest_station",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "633:source:db10490cf0a11682b66c8fed38db5af0"
        ],
        "evidence": [
          {
            "source_id": "633:source:db10490cf0a11682b66c8fed38db5af0",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'DK'%20AND%20AirPollutant%3D'PM2.5'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: nearest_station",
            "retrieved_at": "2026-08-01"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:glostrup",
        "label": "Glostrup, Denmark",
        "canonical_path": "/cities/dk/glostrup/",
        "country_code": "DK",
        "population_total": 24869,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "city",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "source-2cd65fb9c148"
        ],
        "evidence": [
          {
            "source_id": "source-2cd65fb9c148",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: city",
            "retrieved_at": "2026-08-03"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:greve",
        "label": "Greve, Denmark",
        "canonical_path": "/cities/dk/greve/",
        "country_code": "DK",
        "population_total": 53536,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "nearest_station",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "633:source:209e11d09aef94e45aae98fc6ac9b915"
        ],
        "evidence": [
          {
            "source_id": "633:source:209e11d09aef94e45aae98fc6ac9b915",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'DK'%20AND%20AirPollutant%3D'PM2.5'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: nearest_station",
            "retrieved_at": "2026-08-01"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:hillerod",
        "label": "Hillerød, Denmark",
        "canonical_path": "/cities/dk/hillerod/",
        "country_code": "DK",
        "population_total": 54855,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "city",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "source-ea117e63a17c"
        ],
        "evidence": [
          {
            "source_id": "source-ea117e63a17c",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: city",
            "retrieved_at": "2026-08-03"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:hoje-taastrup",
        "label": "Høje-Taastrup, Denmark",
        "canonical_path": "/cities/dk/hoje-taastrup/",
        "country_code": "DK",
        "population_total": 59059,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "nearest_station",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "633:source:db10490cf0a11682b66c8fed38db5af0"
        ],
        "evidence": [
          {
            "source_id": "633:source:db10490cf0a11682b66c8fed38db5af0",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'DK'%20AND%20AirPollutant%3D'PM2.5'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: nearest_station",
            "retrieved_at": "2026-08-01"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:holbaek",
        "label": "Holbæk, Denmark",
        "canonical_path": "/cities/dk/holbaek/",
        "country_code": "DK",
        "population_total": 74490,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "nearest_station",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "633:source:db10490cf0a11682b66c8fed38db5af0"
        ],
        "evidence": [
          {
            "source_id": "633:source:db10490cf0a11682b66c8fed38db5af0",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'DK'%20AND%20AirPollutant%3D'PM2.5'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: nearest_station",
            "retrieved_at": "2026-08-01"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:hvidovre",
        "label": "Hvidovre, Denmark",
        "canonical_path": "/cities/dk/hvidovre/",
        "country_code": "DK",
        "population_total": 53760,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "nearest_station",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "633:source:209e11d09aef94e45aae98fc6ac9b915"
        ],
        "evidence": [
          {
            "source_id": "633:source:209e11d09aef94e45aae98fc6ac9b915",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'DK'%20AND%20AirPollutant%3D'PM2.5'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: nearest_station",
            "retrieved_at": "2026-08-01"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:ishoj",
        "label": "Ishøj, Denmark",
        "canonical_path": "/cities/dk/ishoj/",
        "country_code": "DK",
        "population_total": 24365,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "nearest_station",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "633:source:209e11d09aef94e45aae98fc6ac9b915"
        ],
        "evidence": [
          {
            "source_id": "633:source:209e11d09aef94e45aae98fc6ac9b915",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'DK'%20AND%20AirPollutant%3D'PM2.5'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: nearest_station",
            "retrieved_at": "2026-08-01"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:koge",
        "label": "Køge, Denmark",
        "canonical_path": "/cities/dk/koge/",
        "country_code": "DK",
        "population_total": 63335,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "city",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "source-ea117e63a17c"
        ],
        "evidence": [
          {
            "source_id": "source-ea117e63a17c",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: city",
            "retrieved_at": "2026-08-03"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:lejre",
        "label": "Lejre, Denmark",
        "canonical_path": "/cities/dk/lejre/",
        "country_code": "DK",
        "population_total": 29594,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "nearest_station",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "633:source:db10490cf0a11682b66c8fed38db5af0"
        ],
        "evidence": [
          {
            "source_id": "633:source:db10490cf0a11682b66c8fed38db5af0",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'DK'%20AND%20AirPollutant%3D'PM2.5'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: nearest_station",
            "retrieved_at": "2026-08-01"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:geonames:2616235",
        "label": "Nørresundby, Denmark",
        "canonical_path": "/cities/dk/norresundby/",
        "country_code": "DK",
        "population_total": 24831,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "nearest_station",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "source-541133bc8b23"
        ],
        "evidence": [
          {
            "source_id": "source-541133bc8b23",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D%27DK%27+AND+AirPollutant%3D%27PM2.5%27+AND+YearOfStatistics%3D2024&outFields=AirPollutant%2CAirPollutionLevel%2CCountry_ISO%2CStationName%2CYearOfStatistics%2CUnitOfAirpollutionLevel%2CReportingMetric%2CLatitudeOfMeasurementStation%2CLongitudeOfMeasurementStation%2CDataCoverage%2CPreliminary&returnGeometry=false&f=json",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: nearest_station",
            "retrieved_at": "2026-08-06"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:randers",
        "label": "Randers, Denmark",
        "canonical_path": "/cities/dk/randers/",
        "country_code": "DK",
        "population_total": 100356,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "city",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "source-ea117e63a17c"
        ],
        "evidence": [
          {
            "source_id": "source-ea117e63a17c",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: city",
            "retrieved_at": "2026-08-03"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:ringsted",
        "label": "Ringsted, Denmark",
        "canonical_path": "/cities/dk/ringsted/",
        "country_code": "DK",
        "population_total": 36286,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "city",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "source-ea117e63a17c"
        ],
        "evidence": [
          {
            "source_id": "source-ea117e63a17c",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: city",
            "retrieved_at": "2026-08-03"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:rodovre",
        "label": "Rødovre, Denmark",
        "canonical_path": "/cities/dk/rodovre/",
        "country_code": "DK",
        "population_total": 44734,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "nearest_station",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "633:source:209e11d09aef94e45aae98fc6ac9b915"
        ],
        "evidence": [
          {
            "source_id": "633:source:209e11d09aef94e45aae98fc6ac9b915",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'DK'%20AND%20AirPollutant%3D'PM2.5'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: nearest_station",
            "retrieved_at": "2026-08-01"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:roskilde",
        "label": "Roskilde, Denmark",
        "canonical_path": "/cities/dk/roskilde/",
        "country_code": "DK",
        "population_total": 91623,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "nearest_station",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "633:source:db10490cf0a11682b66c8fed38db5af0"
        ],
        "evidence": [
          {
            "source_id": "633:source:db10490cf0a11682b66c8fed38db5af0",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'DK'%20AND%20AirPollutant%3D'PM2.5'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: nearest_station",
            "retrieved_at": "2026-08-01"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:solrod",
        "label": "Solrød, Denmark",
        "canonical_path": "/cities/dk/solrod/",
        "country_code": "DK",
        "population_total": 24732,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "nearest_station",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "633:source:db10490cf0a11682b66c8fed38db5af0"
        ],
        "evidence": [
          {
            "source_id": "633:source:db10490cf0a11682b66c8fed38db5af0",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'DK'%20AND%20AirPollutant%3D'PM2.5'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: nearest_station",
            "retrieved_at": "2026-08-01"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:geonames:2611828",
        "label": "Taastrup, Denmark",
        "canonical_path": "/cities/dk/taastrup/",
        "country_code": "DK",
        "population_total": 38328,
        "value": 6,
        "value_display": "6 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "nearest_station",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "source-541133bc8b23"
        ],
        "evidence": [
          {
            "source_id": "source-541133bc8b23",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D%27DK%27+AND+AirPollutant%3D%27PM2.5%27+AND+YearOfStatistics%3D2024&outFields=AirPollutant%2CAirPollutionLevel%2CCountry_ISO%2CStationName%2CYearOfStatistics%2CUnitOfAirpollutionLevel%2CReportingMetric%2CLatitudeOfMeasurementStation%2CLongitudeOfMeasurementStation%2CDataCoverage%2CPreliminary&returnGeometry=false&f=json",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: nearest_station",
            "retrieved_at": "2026-08-06"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:aalborg",
        "label": "Aalborg, Denmark",
        "canonical_path": "/cities/dk/aalborg/",
        "country_code": "DK",
        "population_total": 226033,
        "value": 6.5,
        "value_display": "6.5 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "city",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "source-e6424f21dc7d"
        ],
        "evidence": [
          {
            "source_id": "source-e6424f21dc7d",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=AirPollutant%3D%27PM2.5%27+AND+YearOfStatistics%3D2024&outFields=AirPollutant%2CAirPollutionLevel%2CCountry_ISO%2CStationName%2CAreaOfMeasurementStation%2CYearOfStatistics%2CUnitOfAirpollutionLevel%2CTypeOfMeasurementStation%2CDataCoverage%2CReportingMetric%2CLatitudeOfMeasurementStation%2CLongitudeOfMeasurementStation&returnGeometry=false&resultRecordCount=1000&resultOffset=0&f=json",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: city",
            "retrieved_at": "2026-07-26"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:aarhus",
        "label": "Aarhus, Denmark",
        "canonical_path": "/cities/dk/aarhus/",
        "country_code": "DK",
        "population_total": 378361,
        "value": 6.7,
        "value_display": "6.7 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "city",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "source-6438349938e7"
        ],
        "evidence": [
          {
            "source_id": "source-6438349938e7",
            "url": "https://www.eea.europa.eu/en/topics/in-depth/air-pollution/european-city-air-quality-viewer/city-trend-viewer",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: city",
            "retrieved_at": "2026-07-27"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:allerod",
        "label": "Allerød, Denmark",
        "canonical_path": "/cities/dk/allerod/",
        "country_code": "DK",
        "population_total": 26128,
        "value": 7,
        "value_display": "7 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "nearest_station",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "633:source:1597dc68d00c3a9ff9b2c01d6401c404"
        ],
        "evidence": [
          {
            "source_id": "633:source:1597dc68d00c3a9ff9b2c01d6401c404",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'DK'%20AND%20AirPollutant%3D'PM2.5'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: nearest_station",
            "retrieved_at": "2026-08-01"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:geonames:2624112",
        "label": "Birkerød, Denmark",
        "canonical_path": "/cities/dk/birkerod/",
        "country_code": "DK",
        "population_total": 21211,
        "value": 7,
        "value_display": "7 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "nearest_station",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "source-541133bc8b23"
        ],
        "evidence": [
          {
            "source_id": "source-541133bc8b23",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D%27DK%27+AND+AirPollutant%3D%27PM2.5%27+AND+YearOfStatistics%3D2024&outFields=AirPollutant%2CAirPollutionLevel%2CCountry_ISO%2CStationName%2CYearOfStatistics%2CUnitOfAirpollutionLevel%2CReportingMetric%2CLatitudeOfMeasurementStation%2CLongitudeOfMeasurementStation%2CDataCoverage%2CPreliminary&returnGeometry=false&f=json",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: nearest_station",
            "retrieved_at": "2026-08-06"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:slug:copenhagen",
        "label": "Copenhagen, Denmark",
        "canonical_path": "/cities/dk/copenhagen/",
        "country_code": "DK",
        "population_total": 671714,
        "value": 7,
        "value_display": "7 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "city",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "source-e6424f21dc7d"
        ],
        "evidence": [
          {
            "source_id": "source-e6424f21dc7d",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=AirPollutant%3D%27PM2.5%27+AND+YearOfStatistics%3D2024&outFields=AirPollutant%2CAirPollutionLevel%2CCountry_ISO%2CStationName%2CAreaOfMeasurementStation%2CYearOfStatistics%2CUnitOfAirpollutionLevel%2CTypeOfMeasurementStation%2CDataCoverage%2CReportingMetric%2CLatitudeOfMeasurementStation%2CLongitudeOfMeasurementStation&returnGeometry=false&resultRecordCount=1000&resultOffset=0&f=json",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: city",
            "retrieved_at": "2026-07-26"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      },
      {
        "row_id": "denmark-cities-with-cleanest-air:city:dk:geonames:2622306",
        "label": "Farum, Denmark",
        "canonical_path": "/cities/dk/farum/",
        "country_code": "DK",
        "population_total": 20558,
        "value": 7,
        "value_display": "7 µg/m³",
        "unit": "µg/m³",
        "geographic_grain": "nearest_station",
        "source_locator": null,
        "observation_period": "2024-12-31",
        "derivation": "identity",
        "status": "accepted",
        "metric_id": "air_quality_pm25_annual_ug_m3",
        "source_quality": "verified",
        "source_ids": [
          "source-541133bc8b23"
        ],
        "evidence": [
          {
            "source_id": "source-541133bc8b23",
            "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D%27DK%27+AND+AirPollutant%3D%27PM2.5%27+AND+YearOfStatistics%3D2024&outFields=AirPollutant%2CAirPollutionLevel%2CCountry_ISO%2CStationName%2CYearOfStatistics%2CUnitOfAirpollutionLevel%2CReportingMetric%2CLatitudeOfMeasurementStation%2CLongitudeOfMeasurementStation%2CDataCoverage%2CPreliminary&returnGeometry=false&f=json",
            "locator": "air_quality_pm25_annual_ug_m3; geographic grain: nearest_station",
            "retrieved_at": "2026-08-06"
          }
        ],
        "reader_label": "PM2.5 — annual mean",
        "label_owner_metric_id": null,
        "reader_label_role": "metric"
      }
    ],
    "claims": [],
    "source_ledger": [
      {
        "source_id": "633:source:209e11d09aef94e45aae98fc6ac9b915",
        "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'DK'%20AND%20AirPollutant%3D'PM2.5'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json",
        "title": "EEA air quality statistics — DK PM2.5 annual mean 2024 (station \"Hvidover II\")",
        "publisher": "European Environment Agency (EEA)",
        "source_quality": "verified",
        "last_checked": "2026-08-01"
      },
      {
        "source_id": "633:source:b1cd9366f10b3fad3d3015cb99ac4f1c",
        "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'DK'%20AND%20AirPollutant%3D'PM2.5'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json",
        "title": "EEA air quality statistics — DK PM2.5 annual mean 2024 (station \"Aalborg/8158\")",
        "publisher": "European Environment Agency (EEA)",
        "source_quality": "verified",
        "last_checked": "2026-08-01"
      },
      {
        "source_id": "source-541133bc8b23",
        "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D%27DK%27+AND+AirPollutant%3D%27PM2.5%27+AND+YearOfStatistics%3D2024&outFields=AirPollutant%2CAirPollutionLevel%2CCountry_ISO%2CStationName%2CYearOfStatistics%2CUnitOfAirpollutionLevel%2CReportingMetric%2CLatitudeOfMeasurementStation%2CLongitudeOfMeasurementStation%2CDataCoverage%2CPreliminary&returnGeometry=false&f=json",
        "title": "European Environment Agency (EEA)",
        "publisher": "European Environment Agency (EEA)",
        "source_quality": "verified",
        "last_checked": "2026-08-06"
      },
      {
        "source_id": "633:source:b459d656db2ca54989b2bc3a44d7fa73",
        "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'DK'%20AND%20AirPollutant%3D'PM2.5'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json",
        "title": "EEA air quality statistics — DK PM2.5 annual mean 2024 (station \"Århus/6160\")",
        "publisher": "European Environment Agency (EEA)",
        "source_quality": "verified",
        "last_checked": "2026-08-01"
      },
      {
        "source_id": "source-ea117e63a17c",
        "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query",
        "title": "European Environment Agency",
        "publisher": "European Environment Agency",
        "source_quality": "verified",
        "last_checked": "2026-08-03"
      },
      {
        "source_id": "633:source:db10490cf0a11682b66c8fed38db5af0",
        "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'DK'%20AND%20AirPollutant%3D'PM2.5'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json",
        "title": "EEA air quality statistics — DK PM2.5 annual mean 2024 (station \"Risoe\")",
        "publisher": "European Environment Agency (EEA)",
        "source_quality": "verified",
        "last_checked": "2026-08-01"
      },
      {
        "source_id": "source-2cd65fb9c148",
        "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query",
        "title": "European Environment Agency",
        "publisher": "European Environment Agency",
        "source_quality": "verified",
        "last_checked": "2026-08-03"
      },
      {
        "source_id": "source-e6424f21dc7d",
        "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=AirPollutant%3D%27PM2.5%27+AND+YearOfStatistics%3D2024&outFields=AirPollutant%2CAirPollutionLevel%2CCountry_ISO%2CStationName%2CAreaOfMeasurementStation%2CYearOfStatistics%2CUnitOfAirpollutionLevel%2CTypeOfMeasurementStation%2CDataCoverage%2CReportingMetric%2CLatitudeOfMeasurementStation%2CLongitudeOfMeasurementStation&returnGeometry=false&resultRecordCount=1000&resultOffset=0&f=json",
        "title": "EEA Air Quality Annual Statistics — validated PM2.5 station data",
        "publisher": "European Environment Agency",
        "source_quality": "verified",
        "last_checked": "2026-07-26"
      },
      {
        "source_id": "source-6438349938e7",
        "url": "https://www.eea.europa.eu/en/topics/in-depth/air-pollution/european-city-air-quality-viewer/city-trend-viewer",
        "title": "EEA City Trend — annual PM2.5 mean within city administrative boundaries",
        "publisher": "European Environment Agency",
        "source_quality": "verified",
        "last_checked": "2026-07-27"
      },
      {
        "source_id": "633:source:1597dc68d00c3a9ff9b2c01d6401c404",
        "url": "https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AQ_Statistics_WM/MapServer/0/query?where=Country_ISO%3D'DK'%20AND%20AirPollutant%3D'PM2.5'%20AND%20YearOfStatistics%3D2024&outFields=AirPollutant,AirPollutionLevel,Country_ISO,StationName,YearOfStatistics,UnitOfAirpollutionLevel,ReportingMetric,LatitudeOfMeasurementStation,LongitudeOfMeasurementStation,DataCoverage,Preliminary&returnGeometry=false&f=json",
        "title": "EEA air quality statistics — DK PM2.5 annual mean 2024 (station \"Copenhagen/1257\")",
        "publisher": "European Environment Agency (EEA)",
        "source_quality": "verified",
        "last_checked": "2026-08-01"
      }
    ],
    "meaning_audit": [
      "Compare the displayed value, unit, source date and geographic grain together.",
      "A city label does not change a regional observation into a city measurement."
    ],
    "blockers": [],
    "counts": {
      "rows_total": 30,
      "rows_accepted": 30,
      "rows_blocked": 0,
      "accepted_items": 30,
      "blocked_items": 0
    },
    "category": "climate_environment",
    "verified_at": "2026-08-06",
    "row_count": 30,
    "country_codes": [
      "DK"
    ]
  }
}
