The Air Quality Health Index is expected to be as high as seven, or high risk, according to Environment Canada.

Additional plumes of smoke from Canada's active wildfires prompt officials to issue a statewide air quality alert on July 14.

The city’s air quality was rated at a seven, or “high risk,” on Sunday night and may persist until Monday, Environment Canada ...

A haze of wildfire smoke engulfed Toronto on Monday morning, pushing the city's air quality to some of the worst on the globe ...

The Wisconsin Department of Natural Resources has issued an Air Quality Advisory for the following counties: Adams, Buffalo, ...

Air quality is unhealthier-than-average for some people Thursday as winds are blowing wildfire smoke across the Northern ...

An air quality alert for northwest Minnesota has been extended to cover the entire state and run through Monday.

Michigan EGLE has issued a Statewide Air Quality Alert through 12:00 PM Monday for unhealthy air quality values forecast ...

Wildfire smoke and storms are the theme for Minnesota's weather on Sunday.

Expect deteriorating air quality across parts of Ontario heading into the new workweek as upper-level winds blow wildfire smoke into the region. Some of the smoke could mix down to the surface, ...

As smoke from wildfires continues to fill the air in Manitoba, a local health expert says the air quality on Friday was about ...

An air quality alert has been issued for all of Michigan for Sunday and Monday due to smoke from Canadian wildfires.