Smoke from Canadian wildfires is beginning to worsen air quality in the eastern U.S. as several Midwestern states battle ...

Smoke from Canadian wildfires continues to plague the Upper Midwest and Great Lakes region, with multiple states under air ...

An air quality index of 300 or higher is considered hazardous, and the record-breaking smoke AQI in Grand Portage reached 800 ...

An air quality alert remains in effect Tuesday for most of Minnesota, though conditions should improve throughout the day.

A gray haze from wildfire smoke could be seen in Cincinnati, and the entire state of Minnesota is under an air quality alert.

The Pollution Control Agency​ extended its air quality alert on Monday for another couple days due to lingering Canadian ...

The entire state of Minnesota continues to be affected by wildfire smoke from Canada, triggering an air quality alert through ...

The smell of fire filled the air as thick smoke from wildfires in Canada blanketed part of the Midwest and created hazardous ...

Smoke from more than 100 wildfires blazing in Canada is expected to spread to impact air quality in more U.S. state.

Cleaner air has moved into northwestern Minnesota where air-quality alerts have been dropped, but the remainder of the state ...

The Minnesota Pollution Control Agency issued an air quality alert for much of state through Wednesday as smoke from ...