A Criteria pollutant is a pollutant determined to be hazardous to human health and regulated under EPA's National Ambient Air Quality Standards. The 1970 amendments to the Clean Air Act require EPA to describe the health and welfare impacts of a pollutant as the "criteria" for inclusion in the regulatory regime. Emissions of the criteria pollutants CO, NOx, NMVOCs, and SO2.

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National Ambient Air Quality Standards (NAAQS): ■■■■■■■■■
National Ambient Air Quality Standards: National Ambient Air Quality Standards (NAAQS): : A National . . . Read More
Designated Pollutant ■■■■■■
A Designated Pollutant is an Air Pollutant which is neither a Criteria nor hazardous pollutant, as described . . . Read More
Health ■■■■■■
Health in the environmental context refers to the state of well-being and the absence of harm or illness . . . Read More
Airborne ■■■■■■
'Airborne' refers to substances or particles that are present or transported in the air. These can include . . . Read More
Vehicle ■■■■■
A 'vehicle' refers to any mode of transportation that is powered by an engine or motor and is used to . . . Read More
Criteria air contaminants ■■■■■
Criteria air contaminants: Criteria air contaminants (CACs) means Emissions of criteria air contaminants . . . Read More
Criteria ■■■■■
A Criteria is Descriptive factors taken into account by EPA in setting standards for various pollutants. . . . Read More
Clean Air Act ■■■■■
A Clean Air Act is gives EPA authority to set standards for air quality and to control the Release of . . . Read More
Standard ■■■■■
Standard: In the context of the environment, "standard" can refer to a benchmark or guideline that is . . . Read More
Monoxide ■■■■■
"Monoxide" refers to a compound composed of one atom of oxygen and one atom of another element, typically . . . Read More