CHICAGO (WLS) -- An air quality alert was issued for the greater Chicago area on Tuesday. The alert was issued by the EPA at about 11:56 a.m. It will be in effect until midnight. Lake, Porter, Newton ...

Chicago’s summer skies are increasingly foul due to Canadian wildfires, especially when the weather otherwise is nicest. This ...

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

Smoke from Canadian wildfires is causing air quality concerns for millions of Americans in the Midwest and Northeast.

The public is advised to take precautions, especially those sensitive to polluted conditions, by limiting their time outside and keeping windows and doors closed.

The air quality index on Tuesday across the Midwest and the Northeast ranged from "moderate" to "unhealthy" for sensitive adults. Some areas in northern Wisconsin, eastern Pennsylvania, northern ...

As Canadian wildfire smoke lingers in the skies, the Chicago area will soon be under an air quality alert, but the smoke ...