Good afternoon, Chicago. Air quality alerts issued today in Illinois because of Canadian wildfire smoke marked the latest ...

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

Most of the Chicago area remains under an Air Quality Alert this weekend due to smoke from Canadian wildfires.

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

An air quality alert for the Chicago area was extended for a second time as smoke from Canadian wildfires lingers overhead ...

Illinois, Michigan, Wisconsin and Minnesota are under air quality alerts for unhealthy conditions as Canadian wildfire smoke ...

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 ...

Smoke from Canadian wildfires has returned to Central Illinois bringing significant reductions in air quality to Central ...

While air quality was in the "unhealthy for sensitive groups" category in Chicago, it was even worse in some suburbs.

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

The Illinois Environmental Protection Agency issued a Red Forecast Air Pollution Action Day for Thursday, July 31, for the ...