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

Chicago air quality remains in the top five worst in the world Friday with an Air Quality Alert in place from Canadian ...

CHICAGO (WLS) -- Most of the Chicago area remains under an Air Quality Alert on Saturday due to smoke from Canadian wildfires ...

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

An Air Quality Alert was still in effect for a third straight day, but for a smaller portion of the Chicago area.

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

Chicago was listed as the worst air quality in the world for part of Aug. 1 because of smoke from the fires blowing southeast ...

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

CHICAGO - Today we have an air quality alert in effect with unhealthy levels of smoke in the air. We also have high waves ...

On Friday, the Minnesota Pollution Control Agency extended the current air quality alert for all of Minnesota and Wisconsin ...

While air quality was in the "unhealthy for sensitive groups" category in Chicago, it was even worse in some suburbs.