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 who live in areas that received an "F" in smog and soot pollution.

Texas, Ohio, and Minnesota residents were warned of ozone pollution levels that were potentially unhealthy for sensitive groups on Monday.

Some restrictions prevent loosening of existing environmental standards for clean air and water. Other rules can be changed – though only through a challenging and multistep democratic process.

EPA data shows three of those refineries are in trouble with federal law. Some even have a history of violating federal ...

Air quality monitoring infrastructure is mostly ... a staff attorney at Great Rivers Environmental Law Center in St. Louis, which works for free to represent clients in environmental cases.