San Jose vs Shanghai

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

Costa Rica
San Jose
22
Good
China
Shanghai
111
Unhealthy for Sensitive Groups
MetricSan JoseShanghai
AQI22111
PM2.56.1 μg/m³44.4 μg/m³
PM106.5 μg/m³64.5 μg/m³
Ozone23 ppb21 ppb
NO212.3 ppb36.6 ppb

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