San Diego vs Beijing

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

United States
San Diego
48
Good
China
Beijing
152
Unhealthy
MetricSan DiegoBeijing
AQI48152
PM2.59.4 μg/m³49.7 μg/m³
PM1011.4 μg/m³56.6 μg/m³
Ozone36 ppb90 ppb
NO217.1 ppb57.5 ppb

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