Hanoi vs Rio de Janeiro

Live air quality comparison. Rio de Janeiro has cleaner air right now.

Vietnam
Hanoi
120
Unhealthy for Sensitive Groups
Brazil
Rio de Janeiro
63
Moderate
MetricHanoiRio de Janeiro
AQI12063
PM2.553.9 μg/m³23.5 μg/m³
PM1055.8 μg/m³25.8 μg/m³
Ozone35 ppb27 ppb
NO245.3 ppb41 ppb

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