Tokyo vs Seoul

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

Japan
Tokyo
94
Moderate
South Korea
Seoul
73
Moderate
MetricTokyoSeoul
AQI9473
PM2.532.6 μg/m³32.5 μg/m³
PM1036.7 μg/m³34.3 μg/m³
Ozone40 ppb114 ppb
NO263.9 ppb23 ppb

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