Seoul vs Nanjing

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

South Korea
Seoul
77
Moderate
China
Nanjing
57
Moderate
MetricSeoulNanjing
AQI7757
PM2.545.3 μg/m³5.4 μg/m³
PM1045.9 μg/m³6.7 μg/m³
Ozone0 ppb38 ppb
NO257.9 ppb21.3 ppb

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