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U.S. Air Quality Summary (text)
 
U.S. Environmental Protection AgencyOffice of Air Quality, Planning and Standards
AQI logo Clean and Dirty Air What is the AQI? Air Pollution and Health What can I do? Games

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Air Pollution and Health

One thing the AQI does is help you understand what the air quality around you means to your health. Each of the AQI colors has a word or phrase to go with it that tells you something about health. These are the colors and the health words that go with them.

AQI Colors Health Word(s)
Green
Good
Yellow
Moderate
Orange
Unhealthy for Sensitive Groups
Red
Unhealthy
Purple
Very Unhealthy
Maroon
(usually not shown)
Hazardous
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