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

• Current Ozone and Particle Maps
  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.

 
• 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.