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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,Baoqing)[2]; Wu,F(Wu,Feng)[4]
2011-08-19
Source PublicationEnvironmental Earth Sciences
Pages40917
Subtype期刊论文
Abstract

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 137Cs and 210Pb 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.

KeywordYellow Sea Trace metals Anthropogenic activities Pollution
DOI10.1007/s12665-011-1277-4
Indexed BySCI
Language英语
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/10347
Collection粉尘与环境研究室
Corresponding AuthorSun,QL(Sun,Qianli)[1]
Affiliation1.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
Recommended Citation
GB/T 7714
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,2011:40917.
APA Sun,QL,Liu,DY,Liu,T,Di,BP,&Wu,F.(2011).Temporal and spatial distribution of trace metals in sediments from the northern Yellow Sea coast, China: implications for regional anthropogenic processes.Environmental Earth Sciences,40917.
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 (2011):40917.
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