San Jose vs Shanghai

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

Costa Rica
San Jose
34
Good
China
Shanghai
82
Moderate
MetricSan JoseShanghai
AQI3482
PM2.54.2 μg/m³28.1 μg/m³
PM104.7 μg/m³34.6 μg/m³
Ozone80 ppb68 ppb
NO22.8 ppb44 ppb

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