Kolkata vs Hangzhou

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

India
Kolkata
116
Unhealthy for Sensitive Groups
China
Hangzhou
103
Unhealthy for Sensitive Groups
MetricKolkataHangzhou
AQI116103
PM2.538.1 μg/m³56.3 μg/m³
PM1045.3 μg/m³56.5 μg/m³
Ozone66 ppb1 ppb
NO213.3 ppb63.3 ppb

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