Continued drifting of wildfire smoke from Canada and Alaska has prompted Bay Area air regulators to extend an air quality ...

An air quality map shows conditions improving in the U.S. on Friday as smoke from the Canadian wildfires subsides.

The Bay Area Air District on Sunday morning issued an air quality advisory due to possible wildfire smoke from Canada and ...

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

Smoke continues to billow over a northern Manitoba community Thursday where crews are monitoring area hotspots from above, ...

The Bay Area Air District on yesterday morning issued an air quality advisory due to possible wildfire smoke from Canada and ...

Many fires burning across Canada, forcing evacuations and threatening air quality in the United States, cannot simply be put out, authorities and experts say.

The advisory warns that communities along the eastern border of the state will be most affected as upper and lower-level ...

Dry conditions in Canada start a chain of events that exacerbates wildfires, injects plumes of smoke in the air and affects air quality in Milwaukee.

Smoke poured over the Canadian border into eastern Alaska this weekend, bringing poor air quality to communities from ...

WILLIAMS LAKE, B.C. — The Williams Lake and Quesnel areas are both under a special air quality statement as drifting wildfire ...

Health researchers are studying respiratory impacts as climate change makes wildfires more frequent and intense across the ...