Nanjing vs Hanoi

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

China
Nanjing
155
Unhealthy
Vietnam
Hanoi
153
Unhealthy
MetricNanjingHanoi
AQI155153
PM2.546.2 μg/m³83.4 μg/m³
PM1053.9 μg/m³83.8 μg/m³
Ozone47 ppb59 ppb
NO256.3 ppb49.3 ppb

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