Code Yellow Air Quality or the moderate level for particle pollution is forecast for Thursday and Friday. This may cause health symptoms for groups of people in the unusually sensitive category.

Rapidly growing wildfires in several provinces forced thousands of people from their homes and prompted air-quality warnings ...

The Ontario Federation of Labour says it is advocating for more robust worker protections amid rising health concerns over poor air quality as wildfire smoke blankets the province with increasing ...

We’ve traded our smog days for smoke days. It’s once again unhealthy to gather in parks and on beaches, and for kids to play ...

Environment Canada suggests the city’s air quality will stay at “moderate risk” levels until at least Saturday.