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 ...

As wildfires spread across Canada, air quality in the U.S. continues to be impacted, and people sensitive to air pollution could face "serious health effects," according to a government website that ...

States across the U.S. are feeling the impact of the Canadian wildfires as air quality takes a hit from the smoke, according to a government website that tracks air quality in the United States. As of ...

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 hundreds of Canada wildfires continues to blanket the northern U.S., spreading across roughly a dozen states from Wisconsin to Maine. Hazy skies and poor air quality are expected to impact ...

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 ...

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 ...