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Nitrogen Dioxide (NO₂) Primary Standards

The Clean Air Act requires EPA to set national air quality standards for nitrogen oxides and five other pollutants considered harmful to public health and the environment (the other pollutants are ozone, particulate matter, carbon monoxide, sulfur dioxide, and lead). The law also requires EPA to periodically review the standards to ensure that they provide adequate health and environmental protection, and to update those standards as necessary. Learn more about this process

Contact:       Scott Jenkins
                     jenkins.scott@epa.gov
                     919-541-1167

Documents from Current Review

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Documents from Review Completed in 1996

Air Quality Index

Plain Language Information About Pollutant

Summary of Current NAAQS Table

 

 

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