For the Kowloon side of Hong Kong, I suggest you report data on Kowloon Tong. Because there are three major running tracks here plus many schools in the area. It is very important for runners.
As for Hong Kong island, I suggest you give data on south the side of Hong Kong as it is supposed to be a better air quality area.
On the whole it would be better if there is a map that covers the entire Hong Kong. Thank you.