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Nearly 1 in 5 Americans Live in Communities With Harmful Air Quality, Study Shows

Inside Climate News · By Victoria St. Martin · last updated
The most severe impacts are felt in the Western United States, where increasing wildfires have worsened air pollution. People of color are also disproportionately affected.

By Victoria St. Martin

Roughly one in five Americans lives in counties that have high, unhealthy daily levels of pollution from manufacturing soot, vehicle exhaust and other fine particles, according to a new report from the American Lung Association.

Related Knowledge Center: Air emissions

State of Play

More than 30 years after the last major update of the Clean Air Act, the U.S. Supreme Court has upended the ability of Congress to give the Environmental Protection Agency and other federal agencies broad scope to combat air pollution, including the emission of greenhouse gases. Meanwhile, further Biden administration efforts to limit emissions face opposition in the courts. 

More informationabout Air emissions