San Jose vs Shanghai

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

Costa Rica
San Jose
48
Good
China
Shanghai
85
Moderate
MetricSan JoseShanghai
AQI4885
PM2.54.7 μg/m³33.9 μg/m³
PM105.9 μg/m³34.7 μg/m³
Ozone61 ppb34 ppb
NO22.3 ppb63.8 ppb

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