Canadian wildfire smoke spreads across a 3rd of US
Digest more
From the Keweenaw Peninsula to the Mackinac Bridge and areas across lower Michigan, blankets of haze from Canadian wildfires could be seen throughout the week.
The U.S. Environmental Protection Agency warns that wildfire smoke contains dangerous pollutants in the form of fine particles known as PM 2.5 that can penetrate deep into the lungs and enter the bloodstream. Short-term exposure can lead to bronchitis, worsen asthma and create other health issues.
Smoke from Canadian wildfires continues to plague the Upper Midwest and Great Lakes region, with multiple states under air quality alerts.
A haze of Canadian wildfire smoke can be seen over Grand Rapids, Mich. on June 5, 2025. The air quality index was above 151, indicating unhealthy air quality. Health experts say exposure to the smoky air can have short- and long-term health consequences. Joel Bissell | MLive.com
An air quality advisory is expected to remain in effect until noon June 6 as Michigan continues to see effects of Canadian wildfire smoke.
Environment Canada has issued an air quality statement for most of southern Quebec, including Montreal, warning people about potential health impacts.
More than 200 wildfires are raging across Canada, sending a thick blanket of choking smoke through the U.S. Midwest. Experts says climate change means U.S. residents better get used to it.
It's not Halloween, but it looks straight out of a horror movie: The Mackinac Bridge looked like it disappeared into some scary-looking fog Wednesday afternoon. "Unfortunately, what you're seeing today is not fog surrounding the @mackinacbridge but smoke coming from the wildfires and our neighbors to the North,