The smoke from Canadian wildfires produced some of the worst fine particle pollution on record in Minnesota over the weekend. The Minnesota Pollution Control Agency released the top hourly fine particle readings from the air quality alert that ran from Friday to Sunday, with the worst reading reaching 404.9 in Detroit Lakes.

Multiple U.S. states and Canadian provinces are experiencing poor air quality from wildfire smoke. Here's where.

Smoke from wildfires in Canada is creating overcast skies and unhealthy air quality in parts of Minnesota, raising health concerns.

You’re not imagining that campfire smell — thick smoke from Canadian wildfires has settled over Minnesota again, with air quality now unhealthy for everyone.

A group of Republican lawmakers has complained that smoke from Canadian wildfires is ruining summer for Americans, just days after voting for a major bill that will cause more of the planet-heating pollution that is worsening wildfires.

KSTP FORECAST FIRST ALERT TODAY FOR TWIN CITIES/WESTERN WISCONSIN BECAUSE OF CANADIAN WILDFIRE SMOKE PRODUCING UNHEALTHY LEVELS OF SMOKE: Northwest Winds blowing over Minnesota and Wisconsin Today will bring significant amounts of Smoke from Canada Wildfires – people with Respiratory Illness should avoid long periods of time outdoors Today through Sunday morning and even Healthy

Jaime Arredondo, Willmar, Minn. Four Republican representatives from Minnesota and two from Wisconsin recently published the letter that they sent to the Canadian ambassador to the U.S. asking what Canada was planning to do about the wildfire smoke that makes it hard for us to enjoy our usual summer activities.

Smoke from wildfires in Manitoba, a Western province facing its worst fire season in 30 years, has created hazardous air quality conditions across Eastern Canada and the United States.

Six Republican members of Congress – four of them from Minnesota – have called on Canada to impose 'better forest management.'