Hanoi vs Montreal

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

Vietnam
Hanoi
99
Moderate
Canada
Montreal
33
Good
MetricHanoiMontreal
AQI9933
PM2.526.7 μg/m³3.7 μg/m³
PM1028.2 μg/m³3.9 μg/m³
Ozone54 ppb80 ppb
NO229.3 ppb4.4 ppb

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