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Ground-level Ozone Pollution

Announcements

12/20/2024 - EPA releases Volumes 1 and 2 of the Integrated Review Plan for the current review of the Ozone National Ambient Air Quality Standards.

Ground-level Ozone 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.