Boston vs Cairo

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

United States
Boston
47
Good
Egypt
Cairo
71
Moderate
MetricBostonCairo
AQI4771
PM2.57.6 μg/m³18.2 μg/m³
PM107.7 μg/m³33.5 μg/m³
Ozone28 ppb31 ppb
NO242.3 ppb42.7 ppb

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