800 Canadian wildfires blaze as air quality alerts spread to the United States

Over 800 wildfires are active across Canada. The blazes are producing smoke that reaches the United States. Air quality alerts have been issued for affected US regions. The situation raises concerns for public health officials. Residents are advised to limit outdoor exposure. Firefighters are battling the extensive forest fires. The cross‑border smoke illustrates the scale of the emergency. Authorities monitor conditions as the fires continue to spread.