Tehran vs Hanoi

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

Iran
Tehran
73
Moderate
Vietnam
Hanoi
120
Unhealthy for Sensitive Groups
MetricTehranHanoi
AQI73120
PM2.530.5 μg/m³53.9 μg/m³
PM1031 μg/m³55.8 μg/m³
Ozone0 ppb35 ppb
NO2102.4 ppb45.3 ppb

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