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

For air quality, meteorologists’ models show smoke is likely to drift back to southern Ontario late Saturday or Sunday.

Smoke from Canadian wildfires has also been drifting into parts of the United States and as far as Europe. The U.S.

Much of Ontario remains under a special air quality statement on Friday morning as a haze of wildfire smoke chokes out the ...

Environment Canada says wildfire smoke conditions in Eastern Ontario and Western Quebec are expected to continue into ...

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

With wildfire smoke looming over Ontario, Environment Canada has issued air quality watches and statements for a large portion of the province.

Environment Canada is warning Toronto residents to limit their time outdoors today due to poor air quality caused by wildfire ...

If you must spend time outdoors, a well-constructed, well-fitting and properly worn respirator type mask (such as a NIOSH-certified N95 or equivalent respirator) can reduce your exposure to the fine ...

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

More toxic than other sources of pollution, wildfire smoke can cause a range of health effects, from mild coughs, itchy eyes and headaches to dizziness, wheezing, chest pains, asthma attacks, ...