An air quality alert was reported by the National Weather Service on Monday at 3:02 p.m. in effect until Tuesday at 11 p.m.

The U.S. Environmental Protection Agency (EPA) has approved Pennsylvania’s request to designate Liberty-Clairton as a ...

The U.S. Environmental Protection Agency (EPA) announced that parts of Allegheny County have made significant improvements in ...

Newly deployed sensors will fill in significant gaps in the air quality monitoring network in the Pajaro Valley region. In an ...

"While it may improve a little bit later on today or tonight, I think the air quality could go back down again beginning ...

This week’s hot and humid weather, compounded by hazy conditions caused by Canadian wildfires, could lead to problems for ...

Thick, smoky air has settled over large swaths of southern Manitoba on Monday afternoon, prompting Environment Canada and ...

Smoke from two wildfires — one in south-central Utah, the other near the Grand Canyon — has made its way to the Wasatch Front ...

New York City’s air quality has dropped to unhealthy levels for sensitive groups as smoke from Canadian wildfires drifts into ...

NOACA has issued an air quality advisory for much of Northeast Ohio on Monday as temperatures surge into the high 80s.

Princess Charlotte, 10, Makes Surprise Appearance with Prince William at Her First Overseas Soccer Game Science Officially ...

An air quality health advisory is in place until midnight due to elevated levels of fine particulate matter, city officials ...