Seoul vs Chennai

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

South Korea
Seoul
98
Moderate
India
Chennai
66
Moderate
MetricSeoulChennai
AQI9866
PM2.516.1 μg/m³17.7 μg/m³
PM1019.8 μg/m³26.7 μg/m³
Ozone117 ppb70 ppb
NO225.4 ppb3.7 ppb

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