Environment Canada's air quality index has reported moderate to high risk since Saturday morning in Calgary, as many parts of ...

Air quality has improved in much of Quebec and Ontario, but wildfire smoke continues to affect parts of the Prairies, northern Ontario, and eastern Quebec.

Despite expected rain Sunday night, Canadian wildfire smoke will continue to impact Michigan on Monday, officials say.

Wildfire smoke is choking Wisconsin for a third straight spring. The hazy, dirty air from Canada — “some of the highest ...

The state Department of Environmental Conservation has issued an air quality health advisory for Sunday due to smoke from ...

Environment Canada says air quality has improved across most of Quebec and Ontario as changes in wind and rain ease the ...

The New York State Department of Environmental Conservation and the Department of Health have issued an air quality health ...

Canadian Grand Prix is expected to go ahead as planned despite thick wildfire smoke spreading across Montreal.

Edmonton is launching its extreme weather response as wildfire smoke is expected to cause a plunge in air quality. City ...

Much of Ontario remains under special air quality statements or warnings today amid smoke from wildfires burning in other parts of Canada.

Poor air quality and reduced visibility are expected in parts of Ontario this weekend as wildfire smoke continues to drift through the region. According to Environment Canada, high levels of air ...

Environment Canada says wildfire smoke is affecting air quality in northeastern British Columbia. The agency issued special air quality statements Saturday for Fort Nelson and the Peace River region, ...