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学科主题: Environmental Sciences
题名: The changes in trace metal contamination over the last decade in surface sediments of the Pearl River Estuary, South China
作者: Chen, BW ; Liang, XM ; Xu, WH ; Huang, XP ; Li, XD
通讯作者: cexdli@polyu.edu.hk
关键词: Trace metals ; Pearl River Estuary ; Sedimentation ; Spatial distribution ; Statistical analysis ; China
刊名: SCIENCE OF THE TOTAL ENVIRONMENT
发表日期: 2012
卷: 439, 页:141-149
部门归属: [Chen, Baowei; Li, Xiangdong] Hong Kong Polytech Univ, Dept Civil & Environm Engn, Kowloon, Hong Kong, Peoples R China; [Liang, Ximei; Xu, Weihai; Huang, Xiaoping] Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China
项目归属: 海洋地质
摘要: Surface sediments can provide useful information on the recent pollution status of an estuary. One recent field survey was carried out in the Pearl River Estuary (PRE), South China in 2011. The comparisons with previous surveys demonstrated that the concentrations of Ni and Pb in the PRE declined over the last decade, but the concentration of Cu increased in the same time frame. The significant decreases in the concentrations of Ni and Pb were probably due to a reduction of anthropogenic inputs, such as industrial wastewater, into the PRE environment, and the ban imposed on leaded gasoline. Statistical analyses have consistently demonstrated that the process of the sedimentation of fine particles was the dominant factor in controlling the transport and distribution of trace metals in the PRE. The riverine trace metals generally displayed a pattern of diffusion from the northwest to the southeast in the estuary. However, the riparian industrial activities at the east bank of the inner PRE caused significant metal contamination in sediments. In general, effective pollution control measures in the PRD region have decreased the levels of some trace metals in the entire PRE over the last decade with the exception of Cu. (C) 2012 Elsevier B.V. All rights reserved.
语种: 英语
WOS记录号: WOS:000312630200018
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10295
Appears in Collections:中科院边缘海地质重点实验室_期刊论文

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Chen, BW; Liang, XM; Xu, WH; Huang, XP; Li, XD.The changes in trace metal contamination over the last decade in surface sediments of the Pearl River Estuary, South China,SCIENCE OF THE TOTAL ENVIRONMENT,2012,439():141-149
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