An air quality alert has been issued for much of the southern half of the state due to pollution blowing in from Canada wildfires.
The Minnesota Pollution Control Agency says the affected area include the Twin Cities, St. Cloud, Mankato, Marshall, Willmar, Hutchinson, Ortonville, and the Upper Sioux and Prairie Island Tribal nations.
The MPCA says air quality is expected to worsen as the day goes on, but then improve by the weekend.
The alert is in effect until 9 p.m. Friday.
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