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

An air quality alert in the Chicago area has been extended for another day as Canadian wildfire smoke continues to plague the ...

CHICAGO - It's another day of poor air quality across the Chicago region with temperatures set to warm up. Fox 32 ...

Wildfire smoke brings hazy skies and poor air quality to Chicago today, with hot and humid weather building into the weekend.

CHICAGO (WLS) -- An air quality alert has been extended for part of the Chicago area through Thursday. The alert for McHenry, Lake, Kane, DuPage, Kendall, Grundy, Cook and Will counties in Illinois ...

As Canadian wildfire smoke lingers in the skies, the Chicago area will soon be under an air quality alert, but the smoke ...

Wildfire smoke from Canada is a problem again in the Chicago area, with an air quality alert in place now extended through ...

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

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

The hazy skies in the Chicago area are the visible sign of the poor air quality on Thursday as smoke from Canadian wildfires ...

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

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