Rio de Janeiro vs Johannesburg

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

Brazil
Rio de Janeiro
196
Unhealthy
South Africa
Johannesburg
157
Unhealthy
MetricRio de JaneiroJohannesburg
AQI196157
PM2.524.4 μg/m³54.7 μg/m³
PM1025.9 μg/m³54.8 μg/m³
Ozone188 ppb68 ppb
NO223.9 ppb36.3 ppb

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