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

Smoke from Canadian wildfires is causing air quality concerns for millions of Americans in the Midwest and Northeast.  Air ...

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

The wildfire areas of Manitoba and Saskatchewan are projected to receive 50 millimeters to 100 millimeters of rain this ...

Hazy skies settled over Hampton Roads this week as smoke from wildfires in Canada and the West moved over the region. The ...

The National Weather Service says Canadian wildfire smoke will return to Michigan Monday. Residents in northern Michigan should take precautions.

Local health officials, firefighters and community leaders weigh in on the growing concern over wildfire season.

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

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

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

An air quality alert is in effect for all of Massachusetts as smoke from Canadian wildfires descends into the Boston area.

Canadian wildfire smoke will lend a hazy appearance to the sky, and high clouds blanket much of the Philadelphia region, ...