Add Yahoo as a preferred source to see more of our stories on Google. Wildfire smoke from Western Canada has created poor, unsafe air quality readings from northern Ontario to the Greater Toronto Area ...

Canadian wildfires are causing poor air quality across the northern United States. Air quality in the Northeast is expected to worsen before improving later in the week. Hundreds of wildfires remain ...

Smoke from Canadian wildfires is causing air quality concerns and hazy skies for many Americans in the Midwest and Northeast for another day this week. A map of the current Air Quality Index, the ...

Smoke from wildfires in Canada continue to impact air quality in the northern United States, even in the New York City metro area and Hudson Valley. According to the National Weather Service, wildfire ...