Cairo vs Rio de Janeiro

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

Egypt
Cairo
73
Moderate
Brazil
Rio de Janeiro
63
Moderate
MetricCairoRio de Janeiro
AQI7363
PM2.519.1 μg/m³23.5 μg/m³
PM1033.6 μg/m³25.8 μg/m³
Ozone46 ppb27 ppb
NO234.3 ppb41 ppb

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