Tehran vs Chennai

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

Iran
Tehran
83
Moderate
India
Chennai
66
Moderate
MetricTehranChennai
AQI8366
PM2.553 μg/m³17.1 μg/m³
PM1057.7 μg/m³25.4 μg/m³
Ozone18 ppb62 ppb
NO262.7 ppb5.2 ppb

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