About Pollutants
The Clean Air Act identifies common air pollutants that are found all over the United States and can injure health, harm the environment or cause property damage.
These include:
- Carbon Monoxide
- Ozone
- Particulate Matter (PM10) and (PM2.5)
- Sulfur Oxides
The United States Environmental Protection Agency (EPA) has established National Ambient Air Quality Standards
(NAAQS) for each of these pollutants. If the air quality in a geographic area meets the NAAQS, it is called an attainment area; areas that do not meet the NAAQS are called nonattainment areas and must develop comprehensive state plans to reduce pollutant concentrations to a safe level.
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