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

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

As Canada grapples with one of its worst wildfire seasons on record, smoke from the blazes have prompted air quality alerts ...

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

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

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 ...

Dr. Juanita Mora, board director for the American Lung Association and CEO of Chicago Allergy Center, joins Lisa Dent to ...

Chicago had the distinction last week of having the worst air quality in the world due to Canadian wildfires. The big ...

An Air Quality Alert is active until Thursday night at midnight. People with sensitivities should take precautions.

The scale and intensity of the fires have had transboundary effects. Smoke from the blazes has drifted across the border into ...

Air quality alerts have been issued across 12 states for Wednesday, according to the National Weather Service.

The results show that there were nearly 7% more deaths during the wildfires. Some are attributed to lung and heart conditions ...