The Green Book Nonattainment Areas
for Criteria Pollutants
"Standards Review" on the sidebar links to EPA's National Ambient Air Quality Standards (NAAQS) designation website.
The "Downloads" link on the sidebar provides access to data exports, GIS shapefiles, and sets of Green Book maps.
The State Implementation Plan Status Website is now available.
As of July 31, 2013Questions concerning the status of nonattainment areas, their classification and EPA policy should be directed to the appropriate Regional Office. EPA Headquarters should be contacted only when the Regional Office is unable to answer a question.
Areas of the country where air pollution levels persistently exceed the national ambient air quality standards may be designated "nonattainment." To view a list of areas designated nonattainment, select one of the pollutants below:
- 1-Hour Ozone
- 8-Hour Ozone (2008 Standard)
- 8-Hour Ozone (1997 Standard)
- Carbon Monoxide
- Nitrogen Dioxide
- Sulfur Dioxide
- Particulate Matter PM-10
- Particulate Matter PM-2.5 (2006 Standard)
- Particulate Matter PM-2.5 (1997 Standard)
- Lead (2008)
- All Criteria Pollutants
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