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
Napa, CA
102 
 
San Rafael, CA
102 
 
Santa Rosa, CA
102 
 
Elk Grove, CA
93 
 
Folsom, CA
93 
 
Salmon, ID
90 
 
Elk Grove, CA
82 
 
Folsom, CA
82 
 
Sacramento, CA
82 
 
Redding, CA
80 
 
Fires: Current Conditions
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Announcements

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