Xian vs Hanoi

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

Unhealthy for Sensitive Groups

Metric	Xian	Hanoi
AQI	137	153
PM2.5	37.4 μg/m³	83.4 μg/m³
PM10	73.8 μg/m³	83.8 μg/m³
Ozone	40 ppb	59 ppb
NO2	25.5 ppb	49.3 ppb

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