Lake City is in the top ten for worst ozone pollution in the U.S., according to the American Lung Association.

Wisconsin Public Radio A new report from the American Lung Association finds Sheboygan ranked among the top 25 worst cities ...

Maricopa County's ozone levels are the fourth-highest in the nation, according to the latest "State of the Air" report by the American Lung Association. Maricopa and Pinal counties received ...

The American Lung Association (ALA) explains that ozone pollution worsens in warmer weather when vehicle and industrial emissions react with sunlight. "Breathing ozone irritates the lungs ...

A new report finds people in the Denver metro area are breathing some of the most ozone-polluted air in the U.S.