Rio de Janeiro vs Sydney

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

Brazil
Rio de Janeiro
81
Moderate
Australia
Sydney
54
Moderate
MetricRio de JaneiroSydney
AQI8154
PM2.539 μg/m³12.5 μg/m³
PM1042.7 μg/m³20.7 μg/m³
Ozone53 ppb102 ppb
NO250.8 ppb5.4 ppb

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