Guide for Ozone
This guide provides ways to protect your health when ozone pollution reaches unhealthy levels.
Guide for Ozone in Spanish
(2 pp., 147 KB)
Guide for Ozone
Last Modified: 02/2023 (2 pp., 147 KB)
There are multiple wildfires in Canada producing smoke that is affecting states in the Central and Northeast United States. Explore the Fire & Smoke Map for more details.
Wildfire smoke is impacting air quality in multiple states. Please use the Fire and Smoke map to check on wildfire smoke impacts in your area.
This guide provides ways to protect your health when ozone pollution reaches unhealthy levels.