Smoke from Canadian wildfires continues to descend into the U.S., creating poor air quality that can cause health issues.

According to the world air quality report, IQAir, Montreal is the second most polluted city in the world, ranking ahead of Delhi in India and Santiago, Chile. And while Toronto recently surpassed ...

Poor air quality is affecting large swaths of the prairies, as well as central and eastern Canada. Smoke is drifting from wildfires in Manitoba, Saskatchewan and Alberta as far away as Newfoundland ...

An Air Quality Action Day (AQAD) first issued on Thursday has once again been extended as Canadian wildfire smoke continues to move through the area.

Environmental officials in Indiana and Michigan have issued air quality advisories over the next couple of days due to smoke ...