Kolkata vs Montreal

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

India
Kolkata
121
Unhealthy for Sensitive Groups
Canada
Montreal
37
Good
MetricKolkataMontreal
AQI12137
PM2.551.9 μg/m³6.4 μg/m³
PM1064.5 μg/m³6.8 μg/m³
Ozone72 ppb86 ppb
NO215.5 ppb2.2 ppb

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