Hanoi vs Montreal

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

Vietnam
Hanoi
148
Unhealthy for Sensitive Groups
Canada
Montreal
37
Good
MetricHanoiMontreal
AQI14837
PM2.560.8 μg/m³6.4 μg/m³
PM1061 μg/m³6.8 μg/m³
Ozone68 ppb86 ppb
NO230.3 ppb2.2 ppb

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