Distribution and temporal changes of lead in the surface seawater in the western Pacific and adjacent seas derived from coral skeletons
Distribution and temporal changes of lead in the surface seawater in the western Pacific and adjacent seas derived from coral skeletons
复制标题
DOI：
10.1016/j.envpol.2005.11.048
复制
发表时间：
2006-12-01
影响因子：
8.9
通讯作者：
Kawahata, Hodaka
中科院分区：
文献类型：
--
作者：
Inoue, Mayuri;Hata, Akiko;Kawahata, Hodaka
本文测定了珊瑚（Porites spp.）从西太平洋及其邻近海域采集的样品，研究了铅在海面上的分布。利用中国海南岛和日本小笠原岛的珊瑚骨骼研究了铅的时间记录。Pb的空间分布表现出明显的从亚洲大陆到大洋的稀释格局。在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，小笠原珊瑚中铅的含量在过去108年中逐渐增加。这可能是由于铅排放主要来自亚洲国家的工业活动。海南珊瑚提供了10年的铅记录，在1997年前后显示出显著的下降，可能是由于中国部分引入无铅汽油。(c)2006爱思唯尔有限公司版权所有。
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.