Seoul vs Nanjing

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

South Korea
Seoul
61
Moderate
China
Nanjing
79
Moderate
MetricSeoulNanjing
AQI6179
PM2.515.8 μg/m³23.4 μg/m³
PM1019.2 μg/m³26.4 μg/m³
Ozone26 ppb8 ppb
NO240.3 ppb44.1 ppb

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