(HAP) An air pollutant considered by EPA to be particularly hazardous to health.
Any air pollutant listed pursuant to section 112(b) of the FCAA. Fed
A hazardous air pollutant is a substance that is defined as hazardous by the 1990 amendments of the Clean Air Act. These substances include certain volatile organic chemicals, pesticides, herbicides, and radionuclides that present tangible hazard, based on scientific studies of exposure to humans and other mammals.
An air pollutant listed under section 112 (b) of the Federal Clean Air Act as very hazardous to health. Emission sources of hazardous air pollutants are identified by U.S. EPA, and emission standards are set accordingly.
One of 189 substances and compounds for which EPA is establishing "maximum achievable control technology" standards. A major source of HAPs is considered one that emits 10 tons per year of a single HAP or 25 tons per year of multiple HAPs.
Chemicals that cause serious health and environmental effects. These are separate from criteria air pollutants. The U.S. EPA has listed 188 hazardous air pollutants [exit DNR]. Examples include benzene (found in gasoline), perchlorethlyene (used in some dry cleaning facilities), and methylene chloride.
An air pollutant listed by the EPA in Section 112(b) of the Federal Clean Air Act, or determined by the DEQ Environmental Quality Commission to cause adverse effects to human health or the environment.
An air pollutant considered by EPA to be particularly hazardous to health. Emission sources of hazardous air pollutants are identified by EPA, and emission standards are set accordingly.
According to law, a pollutant to which no ambient air quality standard is applicable and that may cause or contribute to an increase in mortality or in serious illness; e.g., asbestos; beryllium; and mercury have been declared hazardous air pollutants.