Kolkata vs Xian

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

Unhealthy for Sensitive Groups

Metric	Kolkata	Xian
AQI	116	153
PM2.5	38.1 μg/m³	60.5 μg/m³
PM10	45.3 μg/m³	109.9 μg/m³
Ozone	66 ppb	12 ppb
NO2	13.3 ppb	48.6 ppb

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