Hanoi vs Seattle

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

Vietnam
Hanoi
117
Unhealthy for Sensitive Groups
United States
Seattle
64
Moderate
MetricHanoiSeattle
AQI11764
PM2.554.9 μg/m³16.5 μg/m³
PM1057.6 μg/m³16.9 μg/m³
Ozone25 ppb134 ppb
NO249.3 ppb2.8 ppb

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