Kolkata vs Montreal

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

India
Kolkata
116
Unhealthy for Sensitive Groups
Canada
Montreal
33
Good
MetricKolkataMontreal
AQI11633
PM2.538.1 μg/m³3.7 μg/m³
PM1045.3 μg/m³3.9 μg/m³
Ozone66 ppb80 ppb
NO213.3 ppb4.4 ppb

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