As Canada grapples with one of its worst wildfire seasons on record, smoke from the blazes have prompted air quality alerts across the U.S.

The north-central part of the Prairies and parts of Ontario remain under a series of air-quality warnings. Environment Canada says wildfire smoke is contributing to the region’s very poor air quality ...

Certain trees, such as pines, are much more likely to burst into flames than others due to their sap and needles, McBean ...

Fire Chief Steve Tiernan says the township, which includes the villages of Paisley, Tara and Chesley has been chosen as one ...

People forced to breathe air polluted with large amounts of wildfire smoke visit hospital emergency rooms more often for ...

Canadian wildfire smoke blanketed the skies from the Midwest to the Northeast this week, causing air quality reading to ...

Smoky conditions are expected throughout the day with a high near 30 C in the Greater Toronto Area and across southern Ontario.

A stretch of northern Ontario remains under a special air quality statement amid smoke from wildfires burning in parts of the country.

A smoky haze coloured the sunset in Cornwall on Sunday, August 4, as the city remained under a Special Air Quality Statement issued by Environment and Climate Change Canada. The warning, first posted ...

Environment Canada has lifted special air quality statements for southwestern Ontario as Prairie wildfire smoke dissipates.