Rio de Janeiro vs Sydney

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

Brazil
Rio de Janeiro
63
Moderate
Australia
Sydney
43
Good
MetricRio de JaneiroSydney
AQI6343
PM2.523.5 μg/m³5.8 μg/m³
PM1025.8 μg/m³7.8 μg/m³
Ozone27 ppb56 ppb
NO241 ppb6.9 ppb

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