The Shanghai Air Quality widget shows the real-Time Air Quality Index(AQI), measured by the U.S. Embassy in Shanghai, China.
- The overall AQI and PM2.5 measurements are updated every hour.
- PM10, NO2 and SO2 pollutants are also every hour (based on China MEP data).
- Widget is also available for Beijing, Chengdu, Shenyang and Guangzhou.
For more information, you can consult the website aqicn.org.