Much of southern Ontario was under an air quality statement on Thursday and Friday that lifted early Saturday morning.

Poor air quality will continue in southern Ontario to start the weekend, all thanks to an arriving ridge that will suppress ...

WEATHER ALERT ENVIRONMENT CANADA ************************* Issued at 2025-06-07 12:12PM EDT by Environment Canada, the ...

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

Quebec joined southern Ontario locations on the list of record breaking air quality levels to finish the week. Montreal even topping the list for the worst air quality on Earth for major cities ...

Smoke from wildfires burning in northern Ontario and the Prairies of Canada caused poor air quality and reduced visibility in ...

Parts of Canada are seeing some of their most unhealthy air yet, and the smoke is likely to move over the United States again ...

Toxic metals, including arsenic, could be released by Canadian wildfires, posing health risks to those downwind.

Smoke from wildfires in Canada has spread more than 5,000 miles, reaching parts of Russia and Europe during the past week.

More than 200 wildfires are raging across Canada, sending a thick blanket of choking smoke through the U.S. Midwest. Experts ...

Smoke from the Canadian wildfires continues to bring potentially dangerous air quality to parts of the northern U.S., with ...

Canadian wildfires continue to burn, and plumes of smoke linger over Michigan. Air quality advisories, alerts on June 5.