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 ...

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

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

While some organizations have published clear air quality thresholds or contingency protocols for wildfire smoke, FIFA's ...

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

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