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System Alerts

https://www.airnow.gov/alert/4791

Wildfires in California

2024-07-09

Smoke from numerous wildfires across California affecting air quality in portions of the state. Check the AirNow Fire and Smoke Map for local air quality conditions, fire locations and smoke plumes.

https://www.airnow.gov/alert/4771

Wildfires in Alaska

2024-07-02

Smoke from numerous wildfires across Alaska is affecting air quality in portions of the state. Check the AirNow Fire and Smoke Map for local air quality conditions, fire locations and smoke plumes.

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Announcements

https://www.airnow.gov/announcement/5494

Updated AQI for Particle Pollution Now in Effect

2024-05-06

AirNow products now reflect the updated Air Quality Index for fine particle pollution. Learn more about the AQI updates.

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AirNow.gov - Home of the U.S. Air Quality Index

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AirNow.gov - Home of the U.S. Air Quality Index

Home | Site Map | Contact Us | Accessibility