Application of Pb isotopic mapping to environment evaluation in China
Application of Pb isotopic mapping to environment evaluation in China
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DOI：
10.3184/095422902782775335
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发表时间：
2002-01
影响因子：
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通讯作者：
Zhu Bing-quan;Cheng Yu-wei;Chang Xiang-yang
中科院分区：
文献类型：
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作者：
Zhu Bing-quan;Cheng Yu-wei;Chang Xiang-yang
摘要利用铅同位素示踪定量判别铅污染源和污染水平，必须建立天然铅同位素背景。中国大陆及其邻近海域的铅同位素填图工作正在完成。在大陆上已确定了七个主要同位素省（华夏、印支、扬子、华北、东北、北疆和西藏）。南海Pb同位素填图显示两个沉积区，红河沉积物与印支地球化学省有关，珠江水系沉积物与华夏地球化学省有关。铅同位素证据表明，中国东部地区气溶胶中铅污染的主要来源是当地各行业的铅、锌、铜资源消耗。中国南海周边海域土壤和沉积物中的气溶胶、风尘和酸溶组分中的铅污染主要有两个来源：工业铅的使用和汽车尾气。
Abstract Quantitative criterion of Pb pollution sources and levels from Pb isotopic tracing must depend on the establishment of a natural Pb isotopic background. Lead isotopic mapping for Continental China and the neighborhood sea areas is being completed. Seven major isotopic provinces in the continent (Cathaysia, Indochina, Yangtze, North China, Northeast China, North Xinjiang and Tibet) have been identified. The Pb isotopic mapping in the South China Sea shows two depositing areas; sediments from the Red River is related to the Indochina geochemical province; sediments from the Pearl River system is related to the Cathaysia geochemical province. Pb isotopic evidence indicates that the major Pb pollution sources of aerosols in the Eastern China are from local Pb–Zn–Cu resource consumption in various industries. The Pb pollution from aerosols, eolian dusts, and acid leachable components in soils and sediments around the South China Sea shows two major sources: application of lead metal in various industries and automobile exhausts.