"The ultimate solution is to open more airspace to civil aviation. Other efforts mada by air traffic management bureaus, airlines and airports have proved to have a limited effect."
Zeng Tao, an aviation industry observer in Beijing commenting on the frequent flight delays.
I’ve lived in China for quite a considerable time including my graduate school years, travelled and worked in a few cities and still choose my destination taking into consideration the density of smog or PM2.5 particulate matter in the region.