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

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

The poor air quality continues to prevail in Illinois as Canadian wildfire smoke migrates south into the U.S. As a result, ...

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

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

The smoke is expected to remain over the northern and central Plains of the United States for the next couple of days, ...

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

Every air quality monitor in Minnesota is reporting red or unhealthy conditions for everyone, an official said.

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

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

Why is the air quality bad right now? Smoke from wildfires spreads to the Midwest, Northeast and southern California in the U ...

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