Sand and Dust Weather Information - Useful Links

Real-time Weather Information
Visibility Readings in Hong Kong Waters
Greater Pearl River Delta Weather Website

Past Press Release on sand or dust weather
Sandstorms in China and visibility in Hong Kong (22 March 2010)

Other useful reference
Trajectory of air that has reached Hong Kong (without forecast)
Air Quality Health Index and Pollutant Concentration from the Environmental Protection Department of Hong Kong
Paper presented at the Guangdong-Hong Kong-Macao Seminar on Meteorological Science and Technology A case study of sand/dust weather affecting Hong Kong on 21 March 2010 (in Chinese only)