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 ...

Smoke from hundreds of wildfires in Canada is lingering over the northern U.S., spreading across to roughly a dozen states ...

However, Lake, Porter, Newton and Jasper counties in Indiana will be under another air quality alert all day Tuesday. The ...

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

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

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

The smoky air is predicted to reach New York City on Monday, and it could bring unhealthy air quality for sensitive groups.

At least 738 wildfires are currently burning in Canada, with at least 201 out of control, according to the Canadian ...

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

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 ...

Smoke from Canadian wildfires settled over Chicago Thursday, with air quality reaching “unhealthy” levels for everyone. Air ...

Smoke and grit from hundreds of forest fires have spread across large parts of Canada and the northern US, sending air quality across the Midwest and northeast US and Toronto to unhealthy levels.