Kolkata vs Hangzhou

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

India
Kolkata
190
Unhealthy
China
Hangzhou
154
Unhealthy
MetricKolkataHangzhou
AQI190154
PM2.568 μg/m³28.3 μg/m³
PM1073.3 μg/m³34.3 μg/m³
Ozone180 ppb151 ppb
NO28.1 ppb14.8 ppb

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