Calgary vs Toronto

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

Canada
Calgary
66
Moderate
Canada
Toronto
64
Moderate
MetricCalgaryToronto
AQI6664
PM2.527.4 μg/m³9.5 μg/m³
PM1030.9 μg/m³9.6 μg/m³
Ozone16 ppb31 ppb
NO264.7 ppb45.6 ppb

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