Primary pollutant

{
  "id": "MLC-T-ENV-022115",
  "term": "Primary pollutant",
  "field": "Environment",
  "term_source": "Primary Pollutant",
  "definition": "1. Substances that are pollutants immediately on entering the atmosphere.\n\n2. Any pollutant that is emitted into the atmosphere directly from its source and that retains the same chemical form. An example of a primary pollutant is dust that blows into the air from a landfill.",
  "subject": "Chemical substances",
  "references": [
    "NOAA National Weather Service Glossary",
    "EPA Report on the Environment Glossary at http://www.epa.gov/ncea/roe/glossary.htm; Report on the Environment (ROE) Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/primary-pollutant/"
}