Hazardous Air Pollutants

{
  "id": "MLC-T-ENV-012914",
  "term": "Hazardous Air Pollutants",
  "field": "Environment",
  "definition": "1. Air pollutants which are not covered by ambient air quality standards but which, as defined in the Clean Air Act, may present a threat of adverse human health effects or adverse environmental effects. Such pollutants include asbestos, beryllium, mercury, benzene, coke oven emissions, radionuclides, and vinyl chloride.\n\n2. Air pollutants that are not covered by ambient air quality standards but which, as defined in the Clean Air Act, may reasonably be expected to cause or contribute to irreversible illness or death. Such pollutants include asbestos, beryllium, mercury, benzene, coke oven emissions, radionuclides, and vinyl chloride. A total of 188 hazardous air pollutants are listed in section 112(b) of the Clean Air Act, as amended in 1990.\n\n3. Chemicals that cause serious health and environmental effects. Health effects include cancer, birth defects, nervous system problems and death due to massive accidental releases such as the one at the pesticide plant in Bhopal, India. Hazardous air pollutants are released by sources such as chemical plants, dry cleaners, printing plants, and motor vehicles (cars, trucks, buses etc.)\n\n4. Defined under the Clean Air Act as pollutants that cause or may cause cancer or other serious health effects, such as reproductive effects or birth defects, or adverse environmental and ecological effects. Currently, the Clean Air Act regulates 188 chemicals and chemical categories as HAPs.\n\n5. Toxic air pollutants, are those pollutants that are known or suspected to cause cancer or other serious health effects, such as reproductive effects or birth defects, or adverse environmental effects.\n\n6. Air pollutants that are not covered by ambient air quality standards but which, as defined in the Clean Air Act, may present a threat of adverse human health effects or adverse environmental effects. Although classified as air pollutants, they may also impact drinking water.\n\n7. Air pollutants identified in the Clean Air Act Amendments of 1990 as reasonably expected to cause or contribute to irreversible illness or death. Such pollutants include asbestos, beryllium, mercury, benzene, coke oven emissions, radionuclides, and vinyl chloride. A total of 188 hazardous air pollutants are listed in section 112(b) of the Clean Air Act, as amended in 1990. There are no ambient air quality standards for these pollutants.",
  "abbreviation": "HAPs",
  "synonyms": [
    "Toxic Air Pollutants",
    "HAP"
  ],
  "subject": "Chemicals, toxics and pesticides",
  "see_also": [
    "Air Toxics"
  ],
  "references": [
    "Terms of Env; Terms of Environment",
    "Childrens Health Protection Glossary",
    "Air Permitting Terms",
    "Improving Air Quality in Your Community Glossary",
    "School Siting Guidelines Glossary",
    "Glossary: Study of the Potential Impacts of Hydraulic Fracturing on Drinking Water Resources",
    "America's Children and the Environment Terms"
  ],
  "url": "https://mlchart.com/terminology/environment/hazardous-air-pollutants/"
}