Kolkata vs Tehran

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

India
Kolkata
114
Unhealthy for Sensitive Groups
Iran
Tehran
82
Moderate
MetricKolkataTehran
AQI11482
PM2.562.4 μg/m³19.4 μg/m³
PM1079.4 μg/m³36.3 μg/m³
Ozone70 ppb71 ppb
NO220.6 ppb42.4 ppb

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