- NAAQS Table | US EPA
The Clean Air Act, which was last amended in 1990, requires EPA to set National Ambient Air Quality Standards (40 CFR part 50) for six principal pollutants ("criteria" air pollutants) which can be harmful to public health and the environment
- National Ambient Air Quality Standards - Wikipedia
The U S National Ambient Air Quality Standards (NAAQS, pronounced ˈnæks naks) are limits on atmospheric concentration of six pollutants that cause smog, acid rain, and other health hazards [1]
- NAAQS Overview – Environmental and Energy Law Program
EPA sets National Ambient Air Quality Standards (NAAQS) for six common and harmful pollutants (also called criteria pollutants): carbon monoxide, lead, particulate matter (PM), ozone, nitrogen dioxide, and sulfur dioxide
- National Ambient Air Quality Standards - Environmental Protection Division
National ambient air quality standards (NAAQS) are air quality standards whose purpose is to protect public health and the environment The NAAQS are set by EPA for the six criteria pollutants: ozone, particulate matter, lead, carbon monoxide, nitrogen dioxide, and sulfur dioxide
- Reviewing National Ambient Air Quality Standards (NAAQS): Scientific . . .
The Clean Air Act requires EPA to set National Ambient Air Quality Standards (NAAQS) for six principal pollutants, called "criteria pollutants," that are common in outdoor air, considered harmful to public health and the environment, and that come from numerous and diverse sources
- NJDEP| Air Planning | NAAQS and Attainment Area Status
The Federal Clean Air Act requires the United States Environmental Protection Agency (USEPA) to set National Ambient Air Quality Standards (NAAQS) for six common air pollutants
- National Ambient Air Quality Standards - California Air Resources Board
NAAQS are selected by the U S EPA Administrator at the conclusion of a public process that takes about five years for completion The process starts with a comprehensive review of the relevant scientific literature
- National Ambient Air Quality Standards (NAAQS) | Definition, Criteria . . .
National Ambient Air Quality Standards (NAAQS), in the United States, allowable levels of harmful air pollutants set by the Environmental Protection Agency (EPA) in accordance with the Clean Air Act (CAA)
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