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.- Final Revisions to the National Ambient Air Quality Standards (NAAQS) for Particulate Matter (PM) Fact Sheet (PDF)(8 pp, 39 K, September 21, 2006)
- September 2006 Revisions to the National Ambient Air Quality Standards (NAAQS) for Particle Pollution Overview (PDF)(21 pp, 249 K, September 2006)
- September 2006 Revisions to the National Ambient Air Quality Standards (NAAQS) for Particle Pollution Graphs and Maps (PDF)(10 pp, 1 MB, September 2006)