Calgary vs Montreal

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

Canada
Calgary
66
Moderate
Canada
Montreal
44
Good
MetricCalgaryMontreal
AQI6644
PM2.527.4 μg/m³6.2 μg/m³
PM1030.9 μg/m³6.2 μg/m³
Ozone16 ppb34 ppb
NO264.7 ppb23.9 ppb

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