The long term trend of ozone level in Hong Kong has been investigated. One of the characteristics of ozone level in Hong Kong is the existence of autumn maxim
The presence of particulate and vapor PAHs, SO2 and Nox and other interrelated conditions (temperature, traffic intensity and wind velocity) were investigated i
Dust storms occurring in arid and semi-arid regions play a main role in the evolution of landscapes. Climate is generally regarded to be important factors influ