Hazy skies from wildfire smoke from Canada, which may become more concentrated with visibility potentially dropping to 3-5 ...

The National Weather Service has opted to extend an air quality alert in the Chicago area for another day.

Some of the worst air quality will be right along Lake Michigan, as the majority of the Chicago metro area will be under that alert. The farthest counties like DeKalb, LaSalle, and Kankakee counties ...

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

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

While the haze slightly lifted Saturday morning, air quality levels are expected to worsen across the Chicago area over the ...

Most of the Chicago area remains under an Air Quality Alert this weekend 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.

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

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

Chicago's Air Quality Alert continues due to Canadian wildfire smoke, with health advisories for sensitive groups amidst ...