Hanoi vs Beijing

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

Unhealthy for Sensitive Groups

Metric	Hanoi	Beijing
AQI	108	152
PM2.5	37.5 μg/m³	39.2 μg/m³
PM10	38.9 μg/m³	39.2 μg/m³
Ozone	12 ppb	0 ppb
NO2	45.9 ppb	90 ppb

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