Boston vs Cairo

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

United States
Boston
40
Good
Egypt
Cairo
57
Moderate
MetricBostonCairo
AQI4057
PM2.54.8 μg/m³16.2 μg/m³
PM105 μg/m³25.2 μg/m³
Ozone58 ppb144 ppb
NO23.4 ppb14 ppb

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