Kolkata vs Hangzhou

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

India
Kolkata
58
Moderate
China
Hangzhou
79
Moderate
MetricKolkataHangzhou
AQI5879
PM2.517.2 μg/m³26 μg/m³
PM1019.4 μg/m³30.6 μg/m³
Ozone75 ppb21 ppb
NO28.5 ppb31.2 ppb

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