AQI Calculator
AQI to Concentration Calculator
DIRECTIONS: Select a pollutant, then enter the AQI value. Click on “Calculate” to see the results.
Learn about the scientific work that allowed AirNow to add data from low-cost sensors to the Fire and Smoke Map. Join us for a free webinar from 1 to 3 p.m. EST, Thursday, January 28, 2021. For more info and to register to attend, visit https://go.usa.gov/xAUmZ
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.
EPA’s AirNow app has a sleek new look and improved functionality! Download the updated app for free on the Apple App Store or the Google Play Store.
Welcome to the updated AirNow website. If you have questions, let us know.