San Francisco vs Cairo

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

United States
San Francisco
51
Moderate
Egypt
Cairo
67
Moderate
MetricSan FranciscoCairo
AQI5167
PM2.59.6 μg/m³21.2 μg/m³
PM1014.8 μg/m³68.2 μg/m³
Ozone67 ppb58 ppb
NO27 ppb20.8 ppb

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