AQI: Good (0 - 50) AQI: Moderate (51 - 100) AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy (151 - 200) AQI: Very Unhealthy (201 - 300) AQI: Hazardous(301 - 500) Action DayAction Day
Highest 5: U.S. Air Quality Summary | Canada Air Quality
About the Highest 5
 
  • Today's Forecasts
  • Tomorrow's Forecasts
  • Current AQI
Redding, CA
70 
 
Fresno, CA
68 
 
Elk Grove, CA
66 
 
Folsom, CA
66 
 
Sacramento, CA
66 
 
Fires: Current Conditions
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Announcements

02/03/15: Updated Ozone Facts webpage.

11/04/14: Updated AirNow materials in Spanish- Ozone and Your health and Guide to Air Quality for Ozone