Seoul vs Hanoi

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

South Korea
Seoul
77
Moderate
Vietnam
Hanoi
148
Unhealthy for Sensitive Groups
MetricSeoulHanoi
AQI77148
PM2.545.3 μg/m³60.8 μg/m³
PM1045.9 μg/m³61 μg/m³
Ozone0 ppb68 ppb
NO257.9 ppb30.3 ppb

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