Rio de Janeiro vs Johannesburg

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

Brazil
Rio de Janeiro
62
Moderate
South Africa
Johannesburg
172
Unhealthy
MetricRio de JaneiroJohannesburg
AQI62172
PM2.524.9 μg/m³145.3 μg/m³
PM1028.5 μg/m³146.7 μg/m³
Ozone180 ppb23 ppb
NO218.1 ppb74 ppb

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