Hanoi vs Rio de Janeiro

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

Vietnam
Hanoi
99
Moderate
Brazil
Rio de Janeiro
62
Moderate
MetricHanoiRio de Janeiro
AQI9962
PM2.526.7 μg/m³24.9 μg/m³
PM1028.2 μg/m³28.5 μg/m³
Ozone54 ppb180 ppb
NO229.3 ppb18.1 ppb

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