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 has been issued for the entirety of Minnesota on Sunday as Canadian wildfire smoke continues to impact ...

Smoke from more than 100 wildfires blazing in Canada is expected to spread and impact air quality index in Minnesota.

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

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

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

Smoke traveling from wildfires in Canada, North Dakota and Minnesota triggered an air quality warning in northern Wisconsin.

Smoke from Canadian wildfires has carried another day of poor air quality south of the border to the American Midwest.

Living in the Midwest means being affected by the Canadian wildfires that occur just about every year. Here is what to know ...

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

In some parts of the U.S., air quality reached "unhealthy" levels Sunday in North Dakota and small swaths of Montana, Minnesota and ... at a news conference. Canada's wildfire season runs from ...