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EPA has set National Ambient Air Quality Standards (NAAQS) for six principal pollutants, which include: ozone, particulate matter, carbon monoxide, sulfur oxides, nitrogen oxides, and lead. Called criteria pollutants, these are derived from numerous sources and are considered harmful to public health and the environment. [Learn more]
Final Reports
- 2010 - Carbon Monoxide (CO) (PDF) (593 pp, 29 MB, About PDF)
- 2009 - Particulate Matter (PM) (PDF) (2228 pp, 1,105 MB, About PDF)
- 2008 - Oxides of Nitrogen (NOx) (Primary - Health Criteria) (PDF) (260 pp, 18 MB, about PDF)
- 2008 - Oxides of Nitrogen & Sulfur (Secondary - Ecological Criteria) (PDF) (898 pp, 42 MB, about PDF)
- 2008 - Sulfur Oxides (SOx) (Primary - Health Criteria) (PDF) (479 pp, 9 MB, about PDF)
- 2006 - Ozone (O3) (PDF) (821 pp, 12 MB, about PDF)
- 2006 - Lead (Pb) (PDF) (1251 pp, 11 MB, about PDF)
Draft Reports
- Integrated Science Assessment of Ozone and Related Photochemical Oxidants (Third External Review Draft) (released 6/15/12)
- Integrated Science Assessment of Lead (Second External Review Draft) (3rd draft coming soon!)
ISA-Related Events
- 9/11: EPA announced a CASAC meeting to review the Ozone Integrated Science Assessment (Third External Review Draft) along with 3 companion reports
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Contact
Program Director: John J. Vandenberg
by phone at: 919-541-4527
by fax at: 919-541-5078
by email at: vandenberg.john@epa.gov