Montreal vs Toronto

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

Canada
Montreal
22
Good
Canada
Toronto
51
Moderate
MetricMontrealToronto
AQI2251
PM2.59.9 μg/m³3.9 μg/m³
PM1010.3 μg/m³4.2 μg/m³
Ozone32 ppb51 ppb
NO222.2 ppb12.3 ppb

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