Canadian wildfire smoke reaches Switzerland, triggers health alerts
Swiss air quality deteriorates to unhealthy levels as smoke from Canadian forest fires crosses the Atlantic.

Key Takeaways
- Canadian wildfire smoke has reached Switzerland causing poor air quality
- PM2.5 particle concentration at Bern-Bollwerk station exceeded WHO guidelines by 10x
- Multiple Swiss locations including Basel-Binnigen and Payerne showed PM2.5 levels 5x above guidelines
By The Numbers
They Said
"These fine particles are a health risk primarily due to their small size. The fine particles can penetrate deep into the respiratory tract and even into the blood."