Extensive wildfires burning on the Prairies created abysmal air quality problems for portions of the country this weekend. One community on the Prairies saw such thick smoke that visibility fell as ...

Toronto residents woke up to a familiar haze in the skies on Thursday as wildfire smoke once again blankets the city in ...

Toronto hit the second worst in a global ranking again this week. The city had the second-worst air quality in the world just ...

Toronto has been selected by Health Canada to pilot the new index, which features a warning system designed to alert people to the health risks associated with the air quality at any time on ...

WINNIPEG — The CFL and Winnipeg Blue Bombers say they're monitoring air quality ahead of Friday's scheduled game against the ...