Add Yahoo as a preferred source to see more of our stories on Google. Smoke from hundreds of Canada wildfires continues to blanket the northern U.S., spreading across roughly a dozen states from ...

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 ...

An air quality advisory has expanded to cover the entire state of Michigan because of Canadian wildfire smoke spreading southward. Most of the state is seeing unhealthy air quality readings, according ...

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 ...

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 ...

Canada wildfire smoke is impacting air quality across a dozen U.S. states, primarily in the Northeast and Great Lakes regions. Air quality is expected to remain poor through Wednesday, Aug. 6, with ...