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Particulate Matter (PM) Pollution

Contact Us

5/18/2020 - EPA adds additional hearing sessions for public comment

5/14/2020 - EPA adds hearing session for public comment

5/1/2020 - EPA announces virtual public hearing dates

4/14/20 - EPA issues proposal to retain the air quality standards for PM

Protect Yourself from Wildfire Smoke

Particulate Matter (PM) Pollution

Particulate
Matter Basics

Setting and Reviewing
the Standards

Implementing
the Standards

Air Quality Where You Live

View current and forecasted air quality conditions across the U.S.
Explore current locations of wildfires
Review data from air quality monitors across the world

Visit AirNow.gov

Note: AirNow is experiencing extremely heavy traffic and may be slow. Visit an alternate map showing air quality from fires.