The EPA's Air Quality Index can tell you whether breathing outside air can hurt you. How to read the scale.

An air quality advisory is in effect for downstate New York on Friday. Limit outdoor activity if you are at risk.

If your home has an air purifier, you might have noticed a number on it measuring something called AQI. But what does it mean ...

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Air quality in Los Angeles has improved as the Palisades and Eaton wildfires get under control. But as the fires burned through houses, cars and industrial areas, they spewed out vast amounts of smoke ...

People with certain medical conditions are advised to limit outdoor activities because of excess levels of ozone and other ...

With elevated pollution levels, the New York State Department of Health recommends individuals consider limiting strenuous ...

As temperatures heat up, an air quality alert has been posted for New York City, according to the New York State Department ...

Dallas-Fort Worth residents should be prepared to take precautions and monitor air quality alerts during Ozone season.