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

Minneapolis was ranked among the cities with the cleanest air, while Seattle was praised for its investment in green spaces and sanitation in a new study.

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

New map shows more than 500 facilities that emit toxic or hazardous air pollution and that could apply for Presidential ...

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

An interactive dashboard from the county of San Diego showing up-to-date information on environmental impacts of the Tijuana ...

Toxic pollution from the Goodyear Tire and Rubber Co. chemical plant in Niagara Falls may be far worse than the state has ...

When the Great Lakes Water Quality Agreement was passed in the 1970s, eutrophication was the big problem. Eutrophication ...

Air pollution levels keep ... and practices into place to control emissions, both for particle pollution and ozone and for ...

Coal ash ponds from retired power plants still pollute U.S. air, prompting new tech and EPA rules to reduce haze and restore ...

EPA Administrator Lee Zeldin said Monday. Zeldin announced last month that the agency will “reconsider” the 2009 conclusion that carbon dioxide pollution endangers human health and welfare ...

Environmental groups sue over deletion of climate and justice tools while polluters receive fast-tracked exemptions from EPA oversight.