AirNow is your one-stop source for air quality data. Our recently redesigned site highlights air quality in your local area first, while still providing air quality information at state, national, and world views.

This is a list of Reporting Areas with the highest current Air Quality Index (AQI) values. Ozone and particle pollution monitors across the country report current air quality readings to AirNow around the …

The Air Quality Index (AQI) tells you how clean or polluted your outdoor air is and the associated health effects that may be of concern.

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Our website and app highlights air quality in your local area first, while still providing air quality information at state and national views. AirNow’s interactive map even lets you zoom out to get the …

Satellite-detected smoke plumes are not visible at night or through clouds. Plumes are most detectable in the afternoon and indicate atmospheric smoke that may not affect ground-level air quality.

Skip to main content X No Data Available There are no current and forecast air quality data found near your location. Please visit the for a list of cities with data. Please search for a U.S. location, or visit …

Local air quality can affect our daily lives. Like the weather, it can change from day to day. EPA developed the Air Quality Index, or AQI, to make information available about the health effects of the …

The U.S. Air Quality Index (AQI) is EPA's tool for communicating about outdoor air quality and health. The AQI includes six color-coded categories, each corresponding to a range of index values.

The colors tell you how healthy the air is to breathe that day. The colors go from Green to Yellow to Orange to Red to Purple to Maroon, each color telling you that the air is less clean than the color …