The Wheeling, WV-OH metro area has seen a decline in air quality, with the area now ranking 130th worst in the country for ozone pollution and 77th worst in the U.S. for year-round particle pollution.

The Portland metro area lands in the middle of the pack for ozone pollution, according to a new report from the American Lung ...

Nearly half of Americans in the U.S. live in areas with failing air quality, according to the American Lung Association’s ...