Hanoi vs Rio de Janeiro

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

Vietnam
Hanoi
148
Unhealthy for Sensitive Groups
Brazil
Rio de Janeiro
196
Unhealthy
MetricHanoiRio de Janeiro
AQI148196
PM2.560.8 μg/m³24.4 μg/m³
PM1061 μg/m³25.9 μg/m³
Ozone68 ppb188 ppb
NO230.3 ppb23.9 ppb

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