Tehran vs Rio de Janeiro

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

Iran
Tehran
93
Moderate
Brazil
Rio de Janeiro
62
Moderate
MetricTehranRio de Janeiro
AQI9362
PM2.538.6 μg/m³24.9 μg/m³
PM1039.7 μg/m³28.5 μg/m³
Ozone8 ppb180 ppb
NO2111.6 ppb18.1 ppb

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