Seoul vs Nanjing

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

South Korea
Seoul
59
Moderate
China
Nanjing
124
Unhealthy for Sensitive Groups
MetricSeoulNanjing
AQI59124
PM2.521.5 μg/m³42.3 μg/m³
PM1027.1 μg/m³51.5 μg/m³
Ozone26 ppb9 ppb
NO248.7 ppb74.3 ppb

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