Hanoi vs Montreal

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

Vietnam
Hanoi
120
Unhealthy for Sensitive Groups
Canada
Montreal
49
Good
MetricHanoiMontreal
AQI12049
PM2.553.9 μg/m³5.6 μg/m³
PM1055.8 μg/m³5.6 μg/m³
Ozone35 ppb33 ppb
NO245.3 ppb27.2 ppb

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