Kolkata vs Shenzhen

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

India
Kolkata
69
Moderate
China
Shenzhen
91
Moderate
MetricKolkataShenzhen
AQI6991
PM2.59.4 μg/m³22.1 μg/m³
PM1010.4 μg/m³22.9 μg/m³
Ozone51 ppb60 ppb
NO210.1 ppb28 ppb

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