COLUMBUS, Ohio — Columbus is under an Air Quality Alert Tuesday due to elevated ozone levels. Mid-Ohio Regional Planning ...

Environment Canada identifies the people at particular risk as seniors, infants, folks who work up a sweat outdoors, and ...

Officials have issued an air quality alert for around 10 million Americans, telling them to minimize outdoor activities and ...

Wildfire smoke has been causing some concerns with our air quality. Meteorologist John Gross breaks down what air quality is ...

EDT the National Weather Service reported an air quality alert in effect until Thursday at 1:30 a.m. EDT for Cass and Berrien ...

The smoke from Canadian wildfires produced some of the worst fine particle pollution on record in Minnesota over the weekend.

The EPA's Air Quality Index can tell you whether breathing outside air can be harmful. Here's how to read the scale to plan ...

Smoke and haze from wildfires in Canada rolled in early Tuesday morning and are expected to linger through the afternoon and night.

The latest forecast and air quality conditions for the greater Los Angeles area, including beaches, valleys and desert regions.

The Michigan Department of Environment, Great Lakes, and Energy (EGLE) has issued an Air Quality Alert for coastal Michigan ...

The vehicle emissions testing program in Northeast Ohio will automatically end if the Trump administration determines it's no ...

With wildfire smoke in the forecast, track the drop in air quality across dozens of PurpleAir sensors with our live, updating ...