San Diego vs Shanghai

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

United States
San Diego
60
Moderate
China
Shanghai
85
Moderate
MetricSan DiegoShanghai
AQI6085
PM2.517.6 μg/m³33.9 μg/m³
PM1024.8 μg/m³34.7 μg/m³
Ozone71 ppb34 ppb
NO212.3 ppb63.8 ppb

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