Air quality is unhealthier-than-average for some people Thursday as winds are blowing wildfire smoke across the Northern California region.

Smoke from Canadian wildfires is expected to drift into North Dakota again in coming days, potentially degrading air quality.

When air quality is ranked "unhealthy for vulnerable groups" it means PM 2.5 are at levels that can cause problems for people ...

Temperatures inside EPA headquarters have soared above 80 degrees and elevators have been breaking down, sources said.

The combined effects of climate change and air pollution have led to direct declines in precipitation in the U.S. Southwest, ...

The current infrastructure also isn’t set up to fully account for the shifting behavior of wildfire smoke, which can travel ...

The Trump administration says it will uphold a Biden-era ban on the ongoing use of asbestos after previously saying it would ...

The U.S. Environmental Protection Agency has officially put the Historic Potteries site in East Trenton on the Superfund National Priorities List (NPL) ...

Smoke travels hundreds of miles to harm air quality far from the fire, according to the EPA’s Wildfire Smoke and Your Patient ...

Recent wildfires in the Northstate, particularly the Green Fire burning in the Montgomery Creek mountainous area of Shasta ...

The Oak Ridge fire burning near the Navajo Nation is now at 75% containment and over 10,000 acres, according to the latest ...

Sulfur dioxide is a toxic gas linked to respiratory problems, especially in children and older adults. But the EPA concluded ...