Nashville’s worsening air pollution earned an F grade for ozone smog in the American Lung Association’s annual State of the Air report released April 22, putting the health of local children at risk.

Americans spend tens of billions dollars each year on measures to reduce emissions of smog-forming pollutants from motor vehicles, power plants, and a host of other sources. Costs continue to rise ...

The U.S. Environmental Protection Agency (EPA), which is forcing Americans to spend billions of dollars per year to address ozone air quality, is actually making the situation worse. The evidence is ...

In this file photo, former Louisiana Department of Environmental Quality Sec. Chuck Carr Brown poses next to the agency's mobile air monitoring units. The officials move them around the state to ...

Oklahoma issued an air quality alert for ozone pollution in Oklahoma City and Lawton, urging residents to take precautions.

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A relentless wave of dry heat, coupled with a recent outbreak of wildfires, is fueling a summertime scourge of the Intermountain West: the near-daily spikes in ozone and other air pollutants, ...

Results are in from the American Lung Association’s annual look at air pollution in American metro areas. There’s good and bad news for the Philadelphia region. The area finally made it off the list ...