AirNow will be undergoing maintenance on September 29, 2020. You may notice some delays in air quality information during the time we perform this necessary work. We apologize for any temporary disruption in our service. If you notice any issues, please let us know at AirNowQuestions@epa.gov
AirNow and the U.S. Forest Service have launched a pilot project to show data from low-cost sensors on the Fire and Smoke Map. The goal of the project is to provide additional air quality information during wildfires – especially in areas with no AirNow monitors. See the map.