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

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

Hazy skies from wildfire smoke will linger through the weekend in Chicago, with mild temperatures and an air pollution alert ...

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

Air quality was impacted in a big way by Canadian wildfire smoke in the Chicago area Thursday, but how long could that smoke ...

Illinois residents are urged to reduce pollution levels. The air quality is expected to improve by Saturday, according to the ...

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

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

CHICAGO The Illinois Environmental Protection Agency (Illinois EPA) and the Illinois Department of Public Health (IDPH) are ...

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

Saturday offers generous sunshine mixed with puffy fair weather clouds, comfortable temperatures and low humidity. An Air ...

Chicago officially had the worst air quality in the world for a few hours Thursday. As a haze of Canadian wildfire smoke ...