Guangzhou Air Quality Index Publisher: Yi Fang Genre: Weather Released: 23 Jun, 2012 Size: 5.2 MB Price: FREE! Click here to request a review of this app App Store Info Description This app is to show Guangzhou air quality index which is about PM2.5 quality index. And the data is from U.S. Consulate Guangzhou. What's New in Version 2.3 fix a bug Screenshots Screenshot 1 of 5