Cooperative Research on Geochemistry of the Klang River Estuary, Malaysia

这项提案要求提供资金，以便继续开展由弗吉尼亚大学环境科学教授Bruce W.Nelson博士和马来西亚雪兰莪州Pertanian大学环境科学系Zelina Ibrahim博士开展的为期24个月的关于巴生河河口地球化学的合作研究，该研究是根据美国国家科学基金会第号补助金开始的。INT8411319。他们的研究将提供关于热带河口系统和控制河口元素行为的过程的新类型的信息。这项研究将包括研究二氧化硅和微量金属在淡水-咸水混合区的行为。以往的研究结果表明，河口的沉积物中集中了有限范围的污染物。将试图确定这些污染物是否容易进入食物链，进入海洋，并成为海洋污染的因素。还将研究二氧化硅在混合区的吸附和解吸作为盐度函数的作用以及向海洋的输送。美国和马来西亚的合作者都是备受尊敬的科学家，他们过去的合作导致了许多出版物。该项目与发展中国家科学计划的目标相关，该计划旨在通过交流科学信息、思想、技能和技术，以及通过在互利问题上的合作，提高美国科学家和工程师与发展中国家同行之间的合作水平。

This proposal requests funds for continuation, for a period of 24 months, the cooperative research by Dr. Bruce W. Nelson, Professor of Environmental Sciences, University of Virginia, and Dr. Zelina Ibrahim, Department of Environmental Sciences, Universiti Pertanian Malaysia, Selangor, Malaysia, on the geochemistry of the Klang River estuary, begun under NSF Grant No. INT8411319. Their study will provide new kinds of information on a tropical estuarine system and the processes that govern element behavior in estuaries. The research will include a study of the behavior of silica and trace metals in the freshwater-saltwater mixing zone. Previous research results show that a limited range of pollutants is concentrated in the sediments of the estuary. An attempt will be made to determine if these pollutants are easily incorporated into the food chain, reach the sea, and are factors in marine pollution. The role of adsorption and desorption of silica as a function of salinity in the mixing zone and transport to the sea also will be studied. The U.S. and Malaysian collaborators are highly respected scientists whose past collaboration has resulted in a number of publications. This project is relevant to the objectives of the Science in Developing Countries Program which seeks to increase the level of cooperation between U.S. scientists and engineers and their counterparts in developing countries through the exchange of scientific information, ideas, skills, and techniques and through collaboration on problems of mutual benefit.