Hanoi vs Chennai

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

Vietnam
Hanoi
153
Unhealthy
India
Chennai
67
Moderate
MetricHanoiChennai
AQI15367
PM2.583.4 μg/m³18.9 μg/m³
PM1083.8 μg/m³26.2 μg/m³
Ozone59 ppb48 ppb
NO249.3 ppb8.1 ppb

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