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This archived version of the previous AirNow website will be shut down on January 31, 2021.
Please use the current website at www.airnow.gov.

This website is historical material reflecting the AirNow website as it existed on March 25, 2020. This website is no longer updated and links to external websites and some internal pages may not work.

AQI: Good (0 - 50) AQI: Good (0 - 50)
Air quality is considered satisfactory, and air pollution poses little or no risk.
AQI: Moderate (51 - 100) AQI: Moderate (51 - 100)
Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy for Sensitive Groups (101 - 150)
Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air.
AQI: Unhealthy (151 - 200) AQI: Unhealthy (151 - 200)
Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects.
AQI:Very Unhealthy (201 - 300) AQI: Very Unhealthy (201 - 300)
Health alert: everyone may experience more serious health effects.
AQI: Hazardous(301 - 500) AQI: Hazardous (301 - 500)
Health warnings of emergency conditions. The entire population is more likely to be affected.
Action DayAction Day
Highest 5:
About the Highest 5
 
  • Current AQI
  • Today's Forecasts
  • Tomorrow's Forecasts
Portola, CA
155
 
Bakersfield, CA
134
 
Omak, WA
128
 
McCall, ID
116
 
Visalia, CA
115
 
Hanford, CA
151
 
Fresno, CA
139
 
Bakersfield, CA
134
 
Madera, CA
110
 
Merced, CA
102
 
Note: Values above 500 are considered Beyond the AQI. Follow recommendations for the Hazardous category. Additional information on reducing exposure to extremely high levels of particle pollution is available.
Fires: Current Conditions
Click to see map
Wildfire Guide and Factsheets
Embassies & Consulates U.S. Embassies and Consulates
Data from air quality monitors at select U.S. embassies and consulates around the world

Announcements

AirNow Website Updated April 15, 2020

This is an archived version of the AirNow website. To navigate to the current AirNow website, please go to airnow.gov. If you have questions, let us know.