Chengdu vs Hanoi

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

Unhealthy for Sensitive Groups

Metric	Chengdu	Hanoi
AQI	151	120
PM2.5	90.3 μg/m³	53.9 μg/m³
PM10	91 μg/m³	55.8 μg/m³
Ozone	28 ppb	35 ppb
NO2	77.9 ppb	45.3 ppb

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