AN ALTERNATIVE APPROACH FOR ESTIMATING MARINE EMISSION

摘要

It is foreseen that the logistics will be one of the important services in Hong Kong for the next economic evolution. The role of sea transportation becomes more and more important; it is not only to serve the re-export of the Pearl delta, but a key nodal of the sea transportation chain in the southeast China. Nowadays, when the emission from other sources is under control, the contribution from marine becomes significant. Currently, the local marine emission inventory estimation is following the reference issued in Europe and the United States, and no work has been done to verify the accuracy of these approaches in Asian countries. In the last two years, preliminary study has been carried out, which included a survey of marine activities, engine power of vessels and the measurement of ambient pollutants at Tsing Yi area. The result of survey and measurement could show a weak correlation of the concentration of pollutants and the maritime activities globally in Hong Kong region and also locally in Kwai-Tsing region. An alternative method is proposed for estimation of emission inventory using a systematic database of individual engine power of ocean-going container vessels. The result provides additional information on the maritime emission, to assist and refine the estimation/prediction of the emission inventory of the seagoing container vessels. Furthermore, it can assist in the assessment of environmental impact from maritime activities. Better estimation of the marine emission inventory could improve the pollution prediction, town planning, as well as to enhance the protection of our environment.