Seoul vs Nanjing

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

South Korea
Seoul
51
Moderate
China
Nanjing
115
Unhealthy for Sensitive Groups
MetricSeoulNanjing
AQI51115
PM2.516.5 μg/m³55.9 μg/m³
PM1016.6 μg/m³55.9 μg/m³
Ozone6 ppb0 ppb
NO255.4 ppb59.7 ppb

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