Environment Canada has issued special air quality statements for multiple regions across northeastern Ontario and beyond.

Air quality alerts were in effect in Iowa, Minnesota, Wisconsin and Michigan, as well as eastern Nebraska and parts of ...

The New York State Department of Environmental Conservation (DEC) has issued an Air Quality Health Advisory for fine particulate matter, in effect from midnight Saturday through midnight Sunday night.

The Oklahoma Department of Environmental Quality released an air quality health advisory for much of Oklahoma on Saturday.

Damaging winds, large hail and a few tornadoes will also be possible with these storms.Elsewhere, wildfire smoke from Canada ...

When wildfires burn, the smoke can travel long distances and degrade air quality far away, which presents risks for those breathing it.

Chicago had the worst air quality in the world for a few hours Thursday, thanks to smoke from Canadian wildfires.

While the haze slightly lifted Saturday morning, air quality levels are expected to worsen across the Chicago area over the ...

Smoke from Canadian wildfires have continued to drift over the Midwest, blanketing the region with haze and poor air quality, prompting the National Weather Service (NWS) and local departments to ...

The state of Minnesota is entering another in a long string of summer days marred by air quality alerts. Poor air quality ...