San Francisco vs Los Angeles

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

United States
San Francisco
51
Moderate
United States
Los Angeles
69
Moderate
MetricSan FranciscoLos Angeles
AQI5169
PM2.59.6 μg/m³19.3 μg/m³
PM1014.8 μg/m³23.7 μg/m³
Ozone67 ppb70 ppb
NO27 ppb15.9 ppb

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