Wildfires continue to burn in Canada, and the smoke is filling communities there and towns across the U.S. border.

The amount of land burned this year is on pace to be the most since 1994, as 100 blazes roared on Friday across the central ...

Smoke from Canadian wildfires is expected to drift into North Dakota again in coming days, potentially degrading air quality.

PM2.5 levels in homes across Canada surged past WHO guidelines during June's wildfire smoke, data shows. A company that sells internet-connected home air quality monitors says its data shows PM2.5 ...

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

The Department of Natural Resources and Environmental Control warns of air that is unsafe for sensitive groups on July 5.

With smoke from Canadian wildfires expected to continue affecting affect Michigan this summer, knowing how to check the air quality before heading outside for physically demanding work or ...

With smoke from Canadian wildfires expected to continue affecting affect Michigan this summer, knowing how to check the air quality before heading outside for physically demanding work or ...

Wildfire smoke returns, hazing skies and raising air quality concerns for outdoor activities.

MINNEAPOLIS (AP) — Smoke from Canadian wildfires carried another day of poor air quality south of the border to the Midwest, where conditions in parts of Minnesota, Wisconsin and Michigan were ...

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