Montreal vs Toronto

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

Canada
Montreal
44
Good
Canada
Toronto
64
Moderate
MetricMontrealToronto
AQI4464
PM2.56.2 μg/m³9.5 μg/m³
PM106.2 μg/m³9.6 μg/m³
Ozone34 ppb31 ppb
NO223.9 ppb45.6 ppb

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