Levels of fine particulate matter have risen in Reykjavík, likely due to smoke from Canadian wildfires, prompting health advisories for those with respiratory issues.

Smoke from wildfires burning in the Canadian Prairies is degrading air quality in northeastern British Columbia, prompting Environment Canada to issue special air quality statements and advise residents to limit outdoor exposure.

Smoke drifting into Yellowknife on May 29, 2025, mainly originated from wildfires in Alberta, with additional smoke forecast from northern British Columbia, according to FireSmoke Canada projections.