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

Wildfire smoke covered the Chicago area Thursday, leading to unhealthy air quality and a wave of haze, but where did it come ...

Concern for poor air quality in the greater Chicago area remains as the Illinois EPA extends its alert until Thursday night.

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

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

While an air quality alert continues for parts of the Midwest due to smoke from Canadian wildfires, northeastern Illinois was ...

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 ...

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

Chicago faces an air quality alert due to Canadian wildfire smoke and high ozone levels, with risks for sensitive groups.

A lot of the Great lakes, including the Stateline, is under an air quality alert this morning. The portion that contains the Illinois area runs until midnight tonight whereas the portion ...