The distribution and speciation of trace metals in surface sediments from the Pearl River Estuary and the Daya Bay, Southern China

被引：140
|
作者：
Yu, Xiujuan [2 ,3 ]
Yan, Yan [2 ,3 ]
Wang, Wen-Xiong [1 ,2 ,3 ]
机构：
[1] Hong Kong Univ Sci & Technol, Dept Biol, Kowloon, Hong Kong, Peoples R China
[2] Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China
[3] Chinese Acad Sci, Key Lab Marine Bioresources Sustainable Utilizat, Key Lab Trop Marine Environm Dynam, Marine Biol Res Stn Daya Bay, Guangzhou 510301, Guangdong, Peoples R China
来源：
MARINE POLLUTION BULLETIN | 2010年 / 60卷 / 08期
关键词：
Sediment; Trace metal; Sequential extraction; Pearl River Estuary; Daya Bay; SEQUENTIAL EXTRACTION PROCEDURES; MARINE-SEDIMENTS; HEAVY-METALS; GRAIN-SIZE; SOILS; ELEMENTS; SEA; FRACTIONATION; ENRICHMENT; PROFILES;
D O I：
10.1016/j.marpolbul.2010.05.012
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Surface sediments collected from the Pearl River Estuary (PRE) and the Daya Bay (DYB) were analyzed for total metal concentrations and chemical phase partitioning. The total concentrations of Cr, Cu, Ni, Pb, and Zn in the PRE were obviously higher than those in DYB. The maximum concentrations of trace metals in DYB occurred in the four sub-basins, especially in Dapeng Cove, while the concentrations of these metals in the western side of the PRE were higher than those in the east side. Such distribution pattern was primarily due to the different hydraulic conditions and inputs of anthropogenic trace metals. The chemical partitioning of metals analyzed by the BCR sequential extraction method showed that Cr, Ni, and Zn of both areas were present dominantly in the residual fraction, while Pb was found mostly in the non-residual fractions. The partitioning of Cu showed a significant difference between the two areas. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1364 / 1371
页数：8
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