As a gray cloud and a pungent smell moved through the Twin Cities on Wednesday, normally bustling bike lanes and running trails were largely deserted.Several commuters wore high-quality masks as they made their way home.The air quality reached unhealthy levels in Minneapolis, St. Paul and much of Minnesota on Wednesday, as the Upper Midwest became the latest pocket of the country to have its air fouled by smoke drifting south from wildfires that have been burning across Canada for weeks.
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