Seoul vs Nanjing

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

South Korea
Seoul
98
Moderate
China
Nanjing
160
Unhealthy
MetricSeoulNanjing
AQI98160
PM2.520.5 μg/m³136 μg/m³
PM1022.8 μg/m³140.6 μg/m³
Ozone52 ppb9 ppb
NO265.9 ppb111.4 ppb

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