CNN —Residents of the central United States experienced poor air quality and smoke over the weekend. The effects of the fires extend far beyond Canada, with poor air quality emerging in states as far away as Missouri and New York. Several states, including Nebraska, Washington, Montana and Wisconsin, announced air quality alerts early Friday. The service in Tacoma reported the smoke would be “pushed eastward in time for the weekend.”As of Sunday afternoon, the US Environmental Protection Agency’s Air Quality Index reported “unhealthy” levels of air quality in parts of Montana and North and South Dakota. Poor air quality caused by the smoke would mostly affect those “that are particularly sensitive to particle pollution,” they said.

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