American Lung Association report found that about 156 million people live in counties plagued by high levels of ozone and ...

Bay Area's air quality struggles despite green reputation, with high ozone and particle pollution impacting health, ...

The most recent State of the Air report by the American Lung Association found that more than 150 million Americans breathe ...

PITTSBURGH — The greater Pittsburgh metropolitan area is among the 25 regions in the country with the worst air pollution, ...

Detroit receives failing grades for number of unhealthy smog days per year, and its year-round levels of soot pollution.

The Detroit-Warren-Ann Arbor region is the sixth worst in the country for year-round particle pollution, per a new report.