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 ...

Canadian wildfires are causing poor air quality in parts of the U.S. Air quality alerts have been issued for several states, advising precautions for sensitive groups. The EPA has designated air ...

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 ...

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 ...