San Francisco vs Cairo

Live air quality comparison. San Francisco has cleaner air right now.

United States
San Francisco
56
Moderate
Egypt
Cairo
81
Moderate
MetricSan FranciscoCairo
AQI5681
PM2.510.9 μg/m³14.5 μg/m³
PM1016.5 μg/m³26.6 μg/m³
Ozone46 ppb87 ppb
NO25.3 ppb15.8 ppb

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