Smoke from wildfires in Manitoba, a Western province facing its worst fire season in 30 years, has created hazardous air ...

Residents in lower-income areas, often near highways and industrial sites, still breathe some of the dirtiest air in the ...

The advisory was extended on Friday afternoon, with officials warning that air quality could be affected through Saturday.

When air quality is ranked "unhealthy for vulnerable groups" it means PM 2.5 are at levels that can cause problems for people ...

Smoke travels hundreds of miles to harm air quality far from the fire, according to the EPA’s Wildfire Smoke and Your Patient ...

With smoke drifting over the Sacramento region from wildfires in the north state, air quality officials are urging capital ...

Unhealthy air has invaded Minnesota, Wisconsin and North Dakota early this week as a new round of wildfire smoke from Canada ...

A study in Ontario found continued exposure to fine particulate matter is linked to higher levels of diffuse myocardial ...

Smoke from northern Ontario forest fires will cause poor air quality and reduced visibility in Sarnia Monday, according to ...

An Air Quality Alert has been issued through Tuesday for the Chicago area from wildfire smoke coming in from Canada.

The Canadian wildfires are expected to track east and south, expanding in Michigan as Sunday goes on and additional smoke is ...