Kolkata vs Montreal

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

India
Kolkata
58
Moderate
Canada
Montreal
49
Good
MetricKolkataMontreal
AQI5849
PM2.517.2 μg/m³5.6 μg/m³
PM1019.4 μg/m³5.6 μg/m³
Ozone75 ppb33 ppb
NO28.5 ppb27.2 ppb

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