San Diego vs Beijing

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

United States
San Diego
44
Good
China
Beijing
184
Unhealthy
MetricSan DiegoBeijing
AQI44184
PM2.55.5 μg/m³156.9 μg/m³
PM108.8 μg/m³163 μg/m³
Ozone81 ppb6 ppb
NO23.1 ppb45 ppb

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