Wildfire smoke forecast, air quality alerts due to pollution from Canadian, Minnesota fires

"Heavy smoke from wildfires blazing in Canada and Minnesota is engulfing large swaths of the Midwest and Northeast U.S. this week, impacting air quality as millions of people are exposed to hazardous levels of air pollution.

Hundreds of wildfires are burning in Canada, and winds are carrying the smoke southeast. Multiple wildfires are raging in northern Minnesota.
High levels of fine particulate matter in the air from smoke can be unhealthy, especially for sensitive groups such as children and people with heart or lung conditions.
Detroit and Washington, D.C., ranked among the world's most polluted major cities on Friday, as air quality alerts stretched from Minnesota to parts of the East Coast. Chicago had also been near the top of the list Friday morning before conditions began to improve.
Minnesota officials issued an air quality alert that extends into the weekend for much of the state, with very heavy smoke across the state's northeastern corner. Air quality levels in northeast Minnesota reached hazardous levels, making it unsafe for everyone." CBS