Smog, Ozone and Your Health - Guide plus current local forecast and conditions

Smog, Ozone and Your Health - Guide plus current local forecast and conditions

What You Need to Know About Smog, Ozone and Your Health

Local Forecasts & Conditions

• Current Ozone and Particle Maps
• Click here for a highlighted Ozone and Particle Pollution Maps air quality maps for the United States or view a text version. Maps for previous days are available in the Map Archives.

National Overview Forecast Ozone Now Particles Now Action Days Archives International	Air Quality Basics Air Quality Index Ozone Particle Pollution	The AQI for... Health Providers Kids Partner agencies Teachers Weathercasters
Key Topics: Your Health Smoke from Fires	Resources Publications Publicaciones FAQ What You Can Do About the Data

Air Quality Conditions

Ozone season starts in May and ends every year for many states on September 30. Ozone forecast and current condition reporting for these states resumes each May.