An Air Pollution Action Day was called Wednesday morning for the Chicago area and is in effect until midnight, weather ...

Smoke coming in from Canadian wildfires settled over Chicago, causing unhealthy air quality conditions for at-risk groups.

An air quality alert is in effect until midnight Thursday for the Chicago area as Canadian wildfires continue.

An air quality alert remains in effect for the entire Chicago area, with another "Air Pollution Action Day" alert declared as ...

CHICAGO (WLS) -- An Air Quality Alert remains in effect Friday due to smoke from Canadian wildfires. The alert remains in effect for the area until midnight Friday. ABC7 Accuweather Meteorologist ...

Chicago’s air took a hit overnight as smoke from more than 100 Canadian wildfires drifted into the city, pushing the air ...

Smoke from Canadian wildfires continues to plague the Upper Midwest and Great Lakes region, with multiple states under air ...

An air quality alert has been issued for much of the Chicago area Wednesday afternoon as Canadian wildfire smoke once again ...

Illinois environmental officials are warning residents about air quality concerns as wildfire smoke from Canada persists in ...

An air quality map shows conditions improving in the U.S. Friday as smoke from the Canadian wildfires subsides.

Smoke from Canadian wildfires triggered an air quality alert Thursday across northeast Illinois, meaning conditions are ...