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

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 Chicago area has experienced several days of pleasant temperatures, but the mercury will be trending upward again in ...

The National Weather Service has opted to extend an air quality alert in the Chicago area for another day.

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

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

Air quality alerts issued Thursday in Illinois because of Canadian wildfire smoke marked the latest bout in an increasingly ...

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

Smoke from Canadian wildfires has drifted into the Midwest and northeastern US, causing hazy skies and prompting air quality ...

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

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