Smoke and grit from hundreds of forest fires have spread across large parts of Canada and the northern US, sending air quality across the Midwest and northeast US and Toronto to unhealthy levels.

Smoke from Canadian wildfires hovered over several Midwestern states Saturday, bringing warnings of unhealthy air ...

Smoke from the more than 700 wildfires burning in Canada is continuing to blanket parts of the Midwest for a final day.

Blazes across several Canadian provinces and territories pose health risks to Canadians and their southern neighbours.

Smoke from Canadian wildfires has sent a blanket of smoke over the midwestern United States this weekend. The National ...

For residents across Minnesota, the past week has been marked by a new, unwelcome normal: a thick, smoky haze hanging over ...

Dr. Dorothy Curran says fine particles in wildfire smoke especially affect sensitive groups, like kids with asthma or Chronic Obstructive Pulmonary Disease (COPD).

As result of severe wildfires in Canada, Minnesota is facing the longest air quality alert on record since the Minnesota ...

Aside from having poor air quality with smoke and haze, we’re set to have a dry weekend across most of Minnesota.

Minneapolis faced hazardous air quality, ranking second-worst globally due to Canadian wildfire smoke. Air quality alerts ...