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AirNow.gov

Get air quality data where you live.

Air Quality Index Scale

0 - 50
Good
51 - 100
Moderate
101 - 150
Unhealthy for Sensitive Groups (USG)
151 - 200
Unhealthy
201 - 300
Very Unhealthy
301 - 500
Hazardous

Current Air Quality

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Air Quality Forecast

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Announcements

https://www.airnow.gov/announcement/4171

Upcoming Webinar: the Science Behind the AirNow Sensor Data Pilot

2021-01-11

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

https://www.airnow.gov/announcement/4011

Sensor Data Available on Fire and Smoke Map

2020-08-19

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.

https://www.airnow.gov/announcement/3786

AirNow app

2020-06-04

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.