San Francisco vs Los Angeles

Live air quality comparison. Both cities show identical AQI right now.

United States
San Francisco
40
Good
United States
Los Angeles
40
Good
MetricSan FranciscoLos Angeles
AQI4040
PM2.57.5 μg/m³3.5 μg/m³
PM1011.3 μg/m³4.6 μg/m³
Ozone83 ppb71 ppb
NO24.3 ppb13.9 ppb

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