Smoke from Canadian wildfires has carried another day of poor air quality south of the border to the American Midwest ...

The Bay Area Air District has extended an air quality advisory through Wednesday due to wildfire smoke from Canada. Smoke ...

The Bay Area Air District has issued an air quality advisory for the region because of smoke from wildfires burning in ...

Canada's wildfires, which have already forced evacuations of more than 26,000 people, continued their stubborn spread Tuesday ...

Smoke from the Canadian wildfires​ will be visible in the Philadelphia area, and an air quality alert has been issued for Wednesday in the Delaware Valley.