Community groups are fighting an unusual Louisiana law that restricts how they use data from air-quality monitors, saying it ...

The House and Senate both voted to loosen regulations on air pollutants like dioxin and mercury, which are associated with ...

For community groups to allege violations of environmental rules, a state law says groups have to use federally-approved testing equipment, and it sets restrictions for analyzing and sharing the data.

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.

Despite years of policy interventions, technological innovations and judicial directives, Delhi’s air pollution crisis ...

Better wood and better stoves are key to getting cleaner air in Fairbanks, a cold-weather region where atmospheric inversions ...