Tehran vs Calgary

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

Iran
Tehran
73
Moderate
Canada
Calgary
53
Moderate
MetricTehranCalgary
AQI7353
PM2.530.5 μg/m³6.2 μg/m³
PM1031 μg/m³6.7 μg/m³
Ozone0 ppb90 ppb
NO2102.4 ppb4 ppb

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