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

Wildfires release vast amounts of visible pollutants into the atmosphere that darken skies and push people indoors to avoid ...

This story was originally published by Grist with the headline As California burns, new research shows smoke is wildfire’s ...

Air quality has taken a serious hit across the United States as a two-fold blow of wildfires in the West and in Canada have ...

More and more people in Michigan are gagging on smoky air blowing in from Canada’s wildfires or struggling to avoid ...

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

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

Wildfire smoke doesn’t just cloud the horizon, it can chemically change the air at ground level and in layers of the ...

Wildfire smoke can cause eye and throat irritation, coughing, wheezing, and shortness of breath — even for healthy people. It ...

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

Several rounds of wildfire smoke have been moving into Denver, Boulder, Fort Collins and communities up and down the I-25 ...