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

A new report on air quality across the U.S. offers a cloudy prognosis on the long-term health of about 156 million residents ...

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

According to a new report from AmericanRivers.org, half of all U.S. rivers now contain unsafe levels of pollution, and freshwater species are vanishing faster than those on land or in the ocean.

Almost half of everyone who lives in the United States breathes unhealthy levels of air pollution, according to the American Lung Association’s annual State of the Air report, released Wednesday.

Nearly half the country is exposed to unhealthy air ... More: Tens of millions more Americans are breathing polluted air. What places have it the worst? “The number of people living in places ...