Smoke from wildfires in Canada has spread more than 5,000 miles, reaching parts of Russia and Europe during the past week.

An air quality map shows conditions improving in the U.S. on Friday as smoke from the Canadian wildfires subsides.

Continued drifting of wildfire smoke from Canada and Alaska has prompted Bay Area air regulators to extend an air quality ...

Smoke from Canadian wildfires is impacting multiple U.S. states, even as far south as Florida. As over 203 active fires rage in Canada as of June 4, according to the Canadian Interagency Forest ...

A mandatory evacuation order was issued for Beauval and English River First Nation on Thursday afternoon due to fears of ...

Maps: See how Canadian wildfire smoke is impacting Mass., New England By Ken Mahan Globe Staff,Updated June 4, 2025, 11:52 a.m.

Canadian wildfire smoke is making the air hazy in Rhode Island Wednesday. The air quality is expected to be in the moderate levels Wednesday. Smoke is expected to start clearing out Wednesday night.

Smoke from wildfires burning in three Canadian provinces covered about a third of the U.S. on Wednesday, forecasters said, ...

Wildfire smoke is a mixture of gases, water vapor, air pollutants and fine particulate matter, the latter known as PM2.5, which is at least 30 times smaller in diameter than a human hair.

Proposed jobs and grants cuts by the Trump administration could have detrimental impacts in air quality monitoring at the ...

MINNEAPOLIS (AP) — Smoke from Canadian wildfires carried another day of poor air quality ... The U.S. Environmental Protection Agency’s AirNow map showed a swath of red for “unhealthy” conditions ...