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

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

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

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 ...

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

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

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

Health officials from Minnesota to Maine have issued alerts warning of poor air quality from wildfires burning in Canada.

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

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

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