AirFire EPA/IWFAQRP Fire & Smoke Map

Shows fine particulate (PM2.5) pollution data obtained from air quality monitors and sensors.

Data and Resources

Additional Info

Field Value
Source https://fire.airnow.gov/
Version 4.2
Last Updated September 26, 2025, 17:33 (UTC)
Created September 26, 2025, 17:33 (UTC)
Contact If you have feedback or questions, please submit comments here. https://usepa.servicenowservices.com/airnow?id=ecss_csm_get_help_1&sys_id=6cbb6ab11ba1981013bdb913cc4bcb78
Credits This map is a collaborative effort between the U.S. Environmental Protection Agency (EPA) (Ron Evans, project lead), and the U.S. Forest Service (USFS)-led Interagency Wildland Fire Air Quality Response Program, led by Pete Lahm, USFS. Map development work led by Sim Larkin, USFS, and Stuart Illson, University of Washington, in collaboration with the EPA AirNow Team. Correction equation work was led by Karoline Barkjohn, EPA. Additional thanks to Jonathan Callahan, Desert Research Institute, Marlin Martínez, University of Washington, Lina Younes, U.S. EPA and many others. This site relies on data provided from a number of sources, including AirNow, the Western Regional Climate Center, AirSis, and PurpleAir for monitoring and sensor data, and the NOAA Hazard Mapping System and National Interagency Fire Center for fire and smoke plume information.