Kolkata vs Oslo

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

India
Kolkata
187
Unhealthy
Norway
Oslo
31
Good
MetricKolkataOslo
AQI18731
PM2.594.3 μg/m³2.1 μg/m³
PM1096.4 μg/m³2.8 μg/m³
Ozone94 ppb52 ppb
NO230.1 ppb4.2 ppb

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