Three people monitored their air quality in different locations for several months. This is what we discovered.

Almost half of everyone who lives in the United States breathes unhealthy levels of air pollution, according to the American ...

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

Chicago's skyline has been shrouded in mystery as conflicting reports of toxic air chemicals swirl, leaving residents ...

A new report found that nearly half of Americans are "living in places that get failing grades" for air quality.

A new report from the American Lung Association shows that Phoenix's ozone problem is worsening, while its particulate ...

Louisville continues to struggle with poor air quality, according to a new report, as federal support is eroded.

In the annual report, Sheboygan placed 24th worst out of 228 cities for ozone pollution. Milwaukee followed at 26th.

Seattle's air quality is among the worst in the nation for short-term particle pollution, according to a new report. Why it ...

Air quality levels are "moderate" in most of New Jersey Thursday morning as the Jones Road fire continues to burn. The fire ...

The American Lung Association said they hope the report helps convince Illinois lawmakers to take action to improve air ...

St. Louis, Missouri, was ranked 21st worst city across the country for its ozone levels this year, while Kansas City was ...