At 9:13 a.m. on Wednesday, the National Weather Service reported an air quality alert in effect until Thursday at midnight ...

Air quality in the Chicago area has remained poor for three days in a row, the NBC 5 Storm Team reported Wednesday morning.

At around 2 pm, officials have now issued a health alert due to the ozone. According to the CABQ Air Quality, individuals who have respiratory conditions in the city of Albuquerque and Bernalillo ...

Millions of Americans across nine states were urged to avoid driving and limit outdoor activities on Wednesday as air quality ...

The New York State Department of Environmental Conservation and the State Department of Health have issued an Air Quality Health Advisory for Eastern Lake Ontario, Western New York, and other regions ...

Canadian wildfire smoke remains in Michigan. On July 16, officials issued an air quality advisory for western counties.

Americans in at least eight states face potentially unhealthy levels of air pollution on Wednesday, official data shows. The data is shown in a live map from AirNow—a partnership of multiple U.S.