Several U.S. cities are experiencing heightened air pollution levels on Wednesday, including parts of Chicago.

“Fairfield County has certainly the worst ozone pollution, or smog pollution, in all of New England,” Canovi said. Ozone smog ...

The American Lung Association’s 2025 air quality index gives failing grades to metro Atlanta for smog and air pollution.

The metro area ranked 15th overall for levels of smog, according to a new analysis from the American Lung Association.

Man-made air pollution is decreasing, but overall air pollution is worse due in part of wildfire smoke, according to a new ...

Arizona’s air is getting cleaner—but not clean enough. A new report from the American Lung Association shows some wins for ...

People in the Denver metro area are breathing some of the most ozone-polluted air in the U.S., the latest "State of the Air" report from the American Lung Association found.

The American Lung Association’s latest State of the Air report ranks Grand Rapids the 27th worst in the U.S. for ozone ...

The American Lung Association is concerned about the funding cuts being made at the U.S. Environmental Protection Agency, which has been their source for this report for 20-plus years.

The Salt Lake City-Provo-Orem area is the ninth-worst U.S. metro for ozone pollution, according to the American Lung ...

A new report from the American Lung Association shows that Phoenix's ozone problem is worsening, while its particulate ...