AQI: Good (0 - 50)Air quality is considered satisfactory, and air pollution poses little or no risk.
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) 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) Everyone may begin to experience health effects members of sensitive groups may experience more serious health effects.
AQI: Very Unhealthy (201 - 300)Health alert: everyone may experience more serious health effects.
AQI: Hazardous (301 - 500)Health warnings of emergency conditions. The entire population is more likely to be affected.
Action Day
| Highest 5: |
| About the Highest 5 |
- Today's Forecasts
- Tomorrow's Forecasts
- Current AQI
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| Bakersfield, CA |
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| C San Bernardino-2, CA |
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| Western Nevada County, CA |
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| Auburn, CA |
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| Colfax, CA |
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| Cool, CA |
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| Lincoln, CA |
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| Winthrop, WA |
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| Coachella Vly, CA |
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| Western Nevada County, CA |
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| Imperial Valley, CA |
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| New Orleans, LA |
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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 here.
Fires: Current Conditions |
| Click to see map |
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U.S. Embassies and Consulates Data from air quality monitors at select U.S. embassies and consulates around the world |
Announcements
6/15/17: National Air Quality Conference, September 11 - 13, 2017. Registration Now Open and Call for Presentations
