The Utah metro area ranked as a metro with the 9th most high ozone days in the nation according to a new report.

State of the Air grades are based on the number of days a county’s air reaches unhealthful levels on the Air Quality Index.

Minot and Ward County had some of the nation’s worst air quality in a new report that shows worsening air pollution across ...

On Wednesday, a report from the American Lung Association ranked Grand Rapids at the 27th worst in the country.

In the latest "State of the Air" report from the American Lung Association, Cincinnati ranked 14th nationally for worst ...

Out of more than 200 metro areas, the Bay Area is the 14th worst for ozone and sixth worst for annual particle pollution.

Almost half of everyone who lives in the United States breathes unhealthy levels of air pollution, according to a new report.

The American Lung Association is concerned about the funding cuts being made at the U.S. Environmental Protection Agency, ...

Nearly half of Americans are living under air-polluted skies, and Cincinnatians are among those experiencing some of the ...

The American Lung Association’s report ranks the Atlanta metro area as the third-worst in the Southeast for ozone pollution.

The talented Bob Baffert trainee was part of a wild speed duel in the Arkansas Derby, and couldn't finish better than fourth, ...

The American Lung Association released its annual "State of the Air" report Wednesday. Shelby, DeSoto, and Crittenden ...