Tehran vs Rio de Janeiro

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

Iran
Tehran
83
Moderate
Brazil
Rio de Janeiro
82
Moderate
MetricTehranRio de Janeiro
AQI8382
PM2.553 μg/m³39 μg/m³
PM1057.7 μg/m³41.9 μg/m³
Ozone18 ppb47 ppb
NO262.7 ppb45.9 ppb

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