Small particles can get lodged in crevices of organs from lungs to arteries, causing inflammation and other health issues.

Smoke drifting south from Canadian wildfires has made skies in Pennsylvania and other states hazy this week. The Pennsylvania ...

Minnesota and Canada share so much: frigid winters, a love for hockey — and more recently, massive plumes of toxic wildfire ...

Smoke produced by hundreds of wildfires burning across Canada has drifted thousands of miles and nearly circled the entire ...

Smoke from hundreds of wildfires in Canada has choked the skies over dozens of northern U.S. states in the Great Lakes and ...

Hazy skies settled over Hampton Roads this week as smoke from wildfires in Canada moved over the region. For the past week, ...

Rep. Tony Wied sent a letter to Canadian Ambassador to the U.S. Kirsten Hillman requesting swift action to mitigate Canadian ...

Smoke from wildfires in Manitoba, a Western province facing its worst fire season in 30 years, has created hazardous air quality conditions across Eastern Canada and the United States.

Hundreds of wildfires still burning in Canada are expected to undermine air quality across the Upper Midwest and Northeast ...

Smoke from wildfires in Canada continue to impact Greater Akron. An Air Quality Alert has been issued for northern Ohio for ...

Residents in Northumberland County faced unhealthy air conditions earlier this week as smoke from Canadian wildfires prompted ...

Smoke from Canada’s raging wildfires has travelled over 5,000 kilometres across the Atlantic Ocean, reaching parts of Europe ...