Tehran vs Vienna

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

Iran
Tehran
77
Moderate
Austria
Vienna
41
Good
MetricTehranVienna
AQI7741
PM2.535.5 μg/m³3.3 μg/m³
PM1050.8 μg/m³4.7 μg/m³
Ozone3 ppb74 ppb
NO287.4 ppb4.7 ppb

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