The advisories impact large areas of Idaho, Oregon, Montana and Washington, lasting through the end of January.

A White House memo ordered a halt to federal assistance and a review to align spending with Donald Trump’s priorities. Many ...

Maricopa and Pinal counties both failed to meet federal air quality standards and will now become part of an Arizona State ...

An atmosphere of rushed urgency in the cockpit' Jeju Air CEO Kim E-bae said the plane had been inspected on the day of the flight, and no issues were ... from the US Federal Aviation ...

Retrofitting with modern HVAC units equipped with higher-efficiency filters and smart sensors can help to reduce airborne ...

A study led by researchers from the University of Virginia has used satellite measurements to show the long-term persistence ...

The day after a fire tore through a fiberglass swimming pool manufacturing business in Gloucester County, hazmat crews are ...

Four Texas counties were recently flagged by the Texas Commission on Environmental Quality for exceeding federal air quality ...

Firefighters continue to battle fires across Southern California as the area prepares for a presidential visit Friday and ...

The Center for Biological Diversity and the Patagonia Area Resource Alliance say federal regulators failed to review a petition against Hermosa Mine.

A Tucson environmental group and a Patagonia community group filed suit Tuesday to try to force the EPA to take a stand on an air quality permit for a major ...

Blue states are bracing for a battle with the Trump administration over their authority to limit tailpipe emissions, a ...