{
  "id": "air_pollutant",
  "name": "Air pollutant notation",
  "status": "draft",
  "doc": "Short notation of an air pollutant measured at air quality stations, as in the pollutant vocabulary of the European Environment Agency (EEA) for air quality reporting and in national air quality data, for example PM10, PM2.5, NO2, O3 or SO2. The regexp covers only the notations of the main pollutants, not full names or the hundreds of other substances of the vocabulary. CO and NO are also country and state codes, so judge a column by the share of values that match.",
  "categories": [
    {
      "id": "environment",
      "name": "Environment (protected areas, biodiversity, water, weather, emissions, waste)"
    },
    {
      "id": "chemistry",
      "name": "Chemistry"
    }
  ],
  "langs": [
    {
      "id": "common",
      "name": "Common to most languages"
    }
  ],
  "is_pii": false,
  "classification": "categorical",
  "regexp": "^(?:PM10|PM2\\.5|PM1|NO2|NO|NO[Xx]|O3|SO2|CO|H2S|NH3|C6H6|Pb|BaP|BS)$",
  "examples": [
    {
      "value": "PM2.5",
      "description": "Particulate matter below 2.5 µm; EEA vocabulary code 6001"
    },
    {
      "value": "NO2",
      "description": "Nitrogen dioxide; EEA vocabulary code 8"
    },
    {
      "value": "O3",
      "description": "Ozone; EEA vocabulary code 7"
    },
    {
      "value": "Ozone",
      "valid": false,
      "description": "Full name instead of the notation"
    }
  ],
  "links": [
    {
      "type": "doc",
      "url": "https://dd.eionet.europa.eu/vocabulary/aq/pollutant/"
    },
    {
      "type": "doc",
      "url": "https://www.epa.gov/criteria-air-pollutants"
    }
  ],
  "translations": {
    "ru": {
      "name": "Обозначение загрязняющего вещества воздуха",
      "doc": "Краткое обозначение загрязняющего вещества атмосферного воздуха в данных мониторинга качества воздуха, например PM10, PM2.5, NO2, O3 или SO2."
    }
  },
  "type": "datatype"
}