How does the CAA address hazardous air pollutants (HAPs)?
In addition to criteria pollutants, the CAA also regulates Hazardous Air Pollutants (HAPs), which are known or suspected to cause cancer or other serious health effects. The 1990 amendments to the CAA significantly expanded the list of HAPs, and the EPA is required to develop technology-based standards for these pollutants. Toxicologists contribute by identifying and characterizing the toxicity of these substances, ensuring effective regulation.
