Secondary pollutant

{
  "id": "MLC-T-ENV-025023",
  "term": "Secondary pollutant",
  "field": "Environment",
  "term_source": "Secondary Pollutant",
  "definition": "1. Pollutants generated by chemical reactions occurring within the atmosphere.\n\n2. Any pollutant that is formed by atmospheric reactions of precursor or primary emissions. An example of a secondary pollutant is ground-level ozone, which forms from chemical reactions involving airborne nitrogen oxides, airborne volatile organic compounds, and sunlight.",
  "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/secondary-pollutant/"
}