Seoul vs Hanoi

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

South Korea
Seoul
61
Moderate
Vietnam
Hanoi
117
Unhealthy for Sensitive Groups
MetricSeoulHanoi
AQI61117
PM2.515.8 μg/m³54.9 μg/m³
PM1019.2 μg/m³57.6 μg/m³
Ozone26 ppb25 ppb
NO240.3 ppb49.3 ppb

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