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Distribution and temporal changes of lead in the surface seawater in the western Pacific and adjacent seas derived from coral skeletons

机译：珊瑚骨架中西太平洋及邻近海表层海水中铅的分布和时间变化

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摘要

We determined Pb contents together with Pb isotopic compositions in coral skeletons (Porites spp.) collected from the western Pacific and adjacent seas to examine distribution of Pb in sea surfaces. Temporal records of Pb were also investigated using coral skeletons from Hainan and Ogasawara Island, located in China and Japan, respectively. The spatial distribution of Pb showed a clear dilution pattern of Pb from Asian continent to the open ocean. Also the similar trend was found in the Java Sea from Jakarta to the offshore. In addition to the spatial distribution, Pb contents in Ogasawara coral have gradually increased during last 108 years. It may be attributed to Pb emission mainly from industrial activities in Asian countries. Hainan coral, which provided 10 years record of Pb, showed a remarkable decline around 1997 probably due to the partial introduction of unleaded gasoline in China. (c) 2006 Elsevier Ltd. All rights reserved.
机译：我们确定了从西太平洋和邻近海域采集的珊瑚骨骼（Porites spp。）中的Pb含量以及Pb同位素组成，以检查Pb在海面的分布。还使用分别位于中国和日本的海南和小gas原岛的珊瑚骨骼调查了铅的时间记录。铅的空间分布显示出从亚洲大陆到远洋的铅的明显稀释模式。从雅加达到近海的爪哇海也发现了类似的趋势。除空间分布外，小gas原珊瑚中的Pb含量在最近108年中逐渐增加。可能归因于主要来自亚洲国家工业活动的铅排放。提供10年铅记录的海南珊瑚在1997年左右出现了显着下降，这可能是由于中国部分引入了无铅汽油所致。 （c）2006 Elsevier Ltd.保留所有权利。

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