Air quality is the worst in these US cities amid Canada wildfires

Some cities in the U.S. are seeing their air quality suffer due to smoke from Canadian wildfires.

Canada wildfires map: Where the fires have spread and how smoke caused air quality warnings in New York

CANADA is battling raging wildfires, with hundreds of fierce infernos tearing through forests as residents flee. The destruction has triggered national emergency measures as exhausted crews ...

Where are wildfires in Canada? See tracker, smoke and air quality maps

Many of the wildfires affecting air quality concerns in the Northeast are burning in Ontario, Canada, as well as Minnesota and nearby regions, according to AccuWeather and Canadian wildfire maps.