Smoke from wildfires still raging in Canada is degrading air quality across the northern U.S., turning skies a murky orange ...

A gray haze from wildfire smoke could be seen in Cincinnati, and the entire state of Minnesota is under an air quality alert.

Canadian wildfire smoke is fouling air quality in the US and several states, including Minnesota, Wisconsin, and Michigan, ...

There were no air quality alerts across the U.S. early Friday, following a flurry of warnings partly linked to wildfires in ...

Toxic air spreads hundreds or even thousands of miles from where wildfires burn. Last week, Chicago felt the sting—and ...

Wildfire smoke from Canada will bring hazy skies and diminished air quality to Northeast Ohio starting on Tuesday.

As climate-driven weather extremes fuel fires across the U.S. West, the tendency of residents to spend more time indoors may be accelerating the spread of infectious diseases, a new study has ...

Canadian wildfire smoke is once again drifting into the United States, affecting air quality across several regions. The lingering haze can pose health risks, especially for people with allergies, ...

Air quality alerts have been posted across the US Northeast, including New York City and Washington, due to Canadian wildfire ...

The worst air in the country on June 14 is in New Castle County. The air quality index in Wilmington as of 9:45 a.m. was 227, ...

The smoke has already arrived. This past week, thick plumes from wildfires in Manitoba and Saskatchewan have drifted into the ...