At the Minnesota Pollution Control Agency (MPCA), most of Minnesota was classified as having “moderate” air quality late Sunday morning, with areas around Marshall, Moorhead and Hibbing being a potential risk for people with breathing sensitivity. An air quality alert for Minnesota through Monday issued by the MPCA remains in effect.

Smoke from wildfires blazing across Canada is once again wafting over huge portions of the U.S. Midwest and worsening air quality there. On August 1 conditions are particularly bad in Minnesota, Iowa and Illinois.