Montreal vs Calgary

Live air quality comparison. Calgary has cleaner air right now.

Canada
Montreal
54
Moderate
Canada
Calgary
25
Good
MetricMontrealCalgary
AQI5425
PM2.511.4 μg/m³2.3 μg/m³
PM1011.6 μg/m³2.5 μg/m³
Ozone77 ppb76 ppb
NO217.6 ppb10.4 ppb

Lower values mean cleaner air. Updated hourly. Sources: OpenAQ, Open-Meteo.