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

Wildfires scorching several Canadian provinces have driven at least 33,400 people from their homes, with smoke now reaching ...

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

Parts of central Pennsylvania are under a code orange air quality alert, but the Midwest is seeing bigger air quality ...

Online map tools and resources let you track the Canadian wildfires and monitor poor air-quality conditions, which are ...

Smoke from wildfires raging in Canada has drifted into the United States, affecting air quality as far south as Florida.

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

An air quality map shows conditions improving in the U.S. on Friday as smoke from the Canadian wildfires subsides.

States across the border issued air advisories about particulate pollution that are expected to last for several days.

Minnesota authorities warned of unhealthy levels of exposure to particles from wildfires. Symptoms include shortness of ...

With 174 active wildfires burning across Canada, several U.S. states are under air quality alerts due to the traveling smoke ...

It smells like a bonfire outside Tuesday due to another day of poor air quality caused by smoke from the wildfires in Canada.