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

Chicago will see near-90 temperatures, high humidity, and poor air quality today, with storm chances returning tonight.

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

Smoke from Canadian wildfires continues to affect air quality across the Midwest, though Monday’s conditions were an ...

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

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

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

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

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

According to the National Weather Service, the air quality alert remains in effect through midnight in parts of the Chicago ...

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

St. Louis and the entire state of Illinois will be under an air quality alert Friday due to wildfire smoke from Canada ...