Nanjing vs Chennai

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

China
Nanjing
57
Moderate
India
Chennai
70
Moderate
MetricNanjingChennai
AQI5770
PM2.55.4 μg/m³20.8 μg/m³
PM106.7 μg/m³32.4 μg/m³
Ozone38 ppb68 ppb
NO221.3 ppb14.6 ppb

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