Kolkata vs Oslo

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

India
Kolkata
57
Moderate
Norway
Oslo
37
Good
MetricKolkataOslo
AQI5737
PM2.517.5 μg/m³9.8 μg/m³
PM1019.9 μg/m³12.9 μg/m³
Ozone73 ppb32 ppb
NO28.6 ppb35.2 ppb

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