Kolkata vs Tianjin

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

Unhealthy for Sensitive Groups

Metric	Kolkata	Tianjin
AQI	113	155
PM2.5	41.6 μg/m³	45.9 μg/m³
PM10	50.5 μg/m³	51.3 μg/m³
Ozone	89 ppb	59 ppb
NO2	14.8 ppb	72 ppb

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