Wildfire smoke blowing into Ontario has dropped air quality to poor levels, but conditions will finally improve come Sunday ...

Wildfire activity has not slowed down in northwestern Ontario as three First Nations remain under evacuation, with hundreds ...

Smoke from wildfires burning in northern Ontario and the Prairies of Canada caused poor air quality and reduced visibility in ...

According to the Ontario’s Air Quality Health Index (AQHI), areas that had “high risk” ratings on Friday were Belleville, ...

More than 200 wildfires are raging across Canada, sending a thick blanket of choking smoke through the U.S. Midwest. Experts ...

Smoke will likely be an ongoing health hazard across North America for the next few months. Here's what to expect.

Smoke from the Canadian wildfires has triggered air quality warnings in several provinces and surrounding U.S. states. As of ...

Prolific smoke that’s blown across North America and beyond over the past couple of weeks will bring reduced air quality to ...

Parts of Canada are seeing some of their most unhealthy air yet, and the smoke is likely to move over the United States again ...

Wildfires scorching several Canadian provinces have driven at least 33,400 people from their homes, with smoke now reaching ...

The U.S. Environmental Protection Agency warns that wildfire smoke contains dangerous pollutants in the form of fine ...

The country's legacy of mining means that toxic metals could be carried along plumes of smoke, endangering people in its path ...