Wildfire smoke degrades air quality in swaths of Ontario, with Toronto ranking among the worst in the world on Monday.

Tuesday’s air quality warning has dropped to a 5, considered a moderate risk, down from Monday’s peak of 10+ on the Air ...

TORONTO - The poor air quality that has blanketed swaths of central and Western Canada is not only infiltrating the lungs, ...

Environment Canada is warning of poor air quality and extreme heat in Toronto on Monday as southern Ontario braces for a week ...

Much of Central Canada, Manitoba and Saskatchewan were placed under special air quality statements or warnings on Monday due ...

Summer camps and daycares are being forced to shift their plans amid stifling heat and poor air quality caused by wildfire ...

Drone video captured wildfire smoke blanketing the skyline in Toronto, Canada on Monday (July 14).

Western winds have pushed smoke plumes from Prairie wildfires toward Quebec and Ontario, including Toronto and the GTA ...

Ontario's poor air quality and hazy skies will persist for the next couple of days for many areas, with widespread alerts ...

Environment Canada identifies the people at particular risk as seniors, infants, folks who work up a sweat outdoors, and ...