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Particulate Matter (PM) Pollution

Fact Sheets and Additional Information Regarding the 2006 Particulate Matter (PM) National Ambient Air Quality Standards (NAAQS)

On September 21, 2006, the EPA revised the suite of national ambient air quality standards for particulate matter (PM).

This page contains a fact sheet, a presentation providing an overview of the rule, and graphs and maps pertaining to this action.

For more information, visit the 2006 PM NAAQS page.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.