Tehran vs Hanoi

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

Iran
Tehran
83
Moderate
Vietnam
Hanoi
154
Unhealthy
MetricTehranHanoi
AQI83154
PM2.553 μg/m³56.2 μg/m³
PM1057.7 μg/m³56.7 μg/m³
Ozone18 ppb108 ppb
NO262.7 ppb34.1 ppb

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