National Weather Service officials issued an air quality alert set to expire at midnight Saturday for the Chicago and ...

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

National Weather Service officials called an air quality alert in effect until midnight as well as a beach hazard warning.

An Illinois “Air Pollution Action Day” is declared when weather conditions are such that widespread ozone and or particulate ...

"The air quality is officially dangerous in Chicago," says Brian Urbaszewski, director of environmental health programs at ...

Every air quality monitor in Minnesota is reporting red or unhealthy conditions for everyone, an official said.

Most of the Chicago area remains under an Air Quality Alert this weekend due 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 ...

Blazes across several Canadian provinces and territories pose health risks to Canadians and their southern neighbours.

An Illinois Air Pollution Action Day is declared when weather conditions are such that widespread ozone and or particulate ...