Calgary vs Toronto

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

Canada
Calgary
70
Moderate
Canada
Toronto
55
Moderate
MetricCalgaryToronto
AQI7055
PM2.543.2 μg/m³19.8 μg/m³
PM1046.1 μg/m³19.9 μg/m³
Ozone155 ppb102 ppb
NO26.1 ppb18.4 ppb

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