Wildfire smoke drifting in from the Prairies and northwestern Ontario is expected to cause reduced visibility and poor air ...

Toronto, Canada came in third on the list ... extremely above-average temperatures in Canada. An interactive map of particle pollution levels from The Associated Press, based on NOAA, EPA and ...

Environment Canada has issued a special air quality statement for Toronto, the GTA and most of Ontario as wildfire smoke is expected in the area overnight.

Environment Canada has issued a special air quality warnings for Ontario and western Quebec due to wildfire smoke drifting ...

Environment Canada has issued nearly 250 active warnings and advisories in Alberta, Saskatchewan, Manitoba and Ontario as wildfires send smoke across Western Canada ...

The city had among the worst air quality in the world for a time on Wednesday and officials warned that poor air quality in the area would likely last into Friday. By Dan Bilefsky Toronto has ...

The wildfire smoke has prompted Environment Canada to issue a special air quality statement for the GTA, much of southern Ontario, as well as five other provinces and one territory. CTV's John ...

An air quality map shows conditions improving in the U.S. on Friday as smoke from the Canadian wildfires subsides.