Temporal and spatial distribution of trace metals in sediments from the northern Yellow Sea coast, China: implications for regional anthropogenic processes
Sun, QL (Sun, Qianli)[1]; Liu, DY (Liu, Dongyan)[2]; Liu, T (Liu, Tao)[3]; Di, BP (Di, Baoping)[2]; Wu, F (Wu, Feng)[4]
2012-06-01
发表期刊ENVIRONMENTAL EARTH SCIENCES
卷号66期号:3页码:697-705
文章类型期刊论文
摘要

Surface sediment samples from 17 sites in the Yantai coastal area, the northern Yellow Sea, China, combined with a sediment core were employed for geochemical and chronological analyses for the purpose of characterizing the temporal and spatial distribution of trace metals in sediments and their implications for anthropogenic processes. The results indicated that the spatial distribution of trace metals (Cr, Ni, Ti, Pb, As, Zn, Mn and Cu) in surface sediments was significantly contributed by the sewage discharges along the Yantai coast, and the coastal currents played a major role for transporting the pollutants to offshore. The temporal concentrations of trace metals in the sediment core based on the chronology determined by a combination of radionuclide Cs-137 and 210 Pb activity demonstrated that trace metal concentrations increased step-wisely over the last ca. 100 years, corresponding to the intensity of anthropogenic processes in the Yantai area. The high levels of Cu and As before the late 1970s indicated the agricultural emission from the application of pesticides. While, all the high-trace metal concentrations since the early 1980s could be seen as diagnostic indictors of increasing industrialization, urbanization and sewage discharge in the Yantai area. Although the potential ecological risk evaluation of trace metals in the coastal area suggests low-potential ecological risk at present, some trace metals, such as As and Pb need particular attention due to their slight contamination.

关键词Yellow Sea Trace Metals Anthropogenic Activities Pollution
DOI10.1007/s12665-011-1277-4
收录类别SCI ; EI
语种英语
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/10213
专题黄土与第四纪地质国家重点实验室(2010~)
通讯作者Sun, QL (Sun, Qianli)[1]
作者单位1.State Key Laboratory for Estuarine and Coastal ResearchInstitute, East China Normal University, Shanghai 200062,China;
2.Yantai Institute of Coastal Zone Research,Chinese Academy of Sciences, Yantai 264003, China;
3.Department of Geography, East China Normal University,Shanghai 200062, China;
4.State Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment, Chinese Academy of Sciences,Xi’an 710075, China
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Sun, QL ,Liu, DY ,Liu, T ,et al. Temporal and spatial distribution of trace metals in sediments from the northern Yellow Sea coast, China: implications for regional anthropogenic processes[J]. ENVIRONMENTAL EARTH SCIENCES,2012,66(3):697-705.
APA Sun, QL ,Liu, DY ,Liu, T ,Di, BP ,&Wu, F .(2012).Temporal and spatial distribution of trace metals in sediments from the northern Yellow Sea coast, China: implications for regional anthropogenic processes.ENVIRONMENTAL EARTH SCIENCES,66(3),697-705.
MLA Sun, QL ,et al."Temporal and spatial distribution of trace metals in sediments from the northern Yellow Sea coast, China: implications for regional anthropogenic processes".ENVIRONMENTAL EARTH SCIENCES 66.3(2012):697-705.
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