文献类型：期刊文献

英文题名：Characterization of Chlorinated Aliphatic Hydrocarbons and Environmental Variables in a Shallow Groundwater in Shanghai Using Kriging Interpolation and Multifactorial Analysis

作者：Lu, Qiang[1];Luo, Qi Shi[2];Li, Hui[1];Liu, Yong Di[1];Gu, Ji Dong[3];Lin, Kuang Fei[1]

机构：[1]E China Univ Sci & Technol, Sch Resource & Environm Engn, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China;[2]Shanghai Inst Design & Res Environm Engn, Shanghai Engn Res Ctr Contaminated Sites Remediat, Shanghai 200237, Peoples R China;[3]Univ Hong Kong, Swire Inst Marine Sci, Sch Biol Sci, Hong Kong, Hong Kong, Peoples R China

年份：2015

卷号：10

期号：11

外文期刊名：PLOS ONE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000367628500014)】；

基金：This study was supported jointly by the National Natural Science Foundation of China (41273109, 51378208), the National Environmental Protection Public Welfare Science and Technology Research Program of China (No. 201309047), the Program for New Century Excellent Talents in University (NCET-13-0797), Fok Ying Tung Education Foundation (141077), the Specialized Research Fund for the Doctoral Program of Higher Education (20110074130002), the Innovation Program of the Shanghai Municipal Education Commission (14ZZ059), Fundamental Research Funds for Central Universities (222201313008, 222201516015), the Innovation Program of Shanghai Municipal Science and Technology Commission (15DZ1205804). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

语种：英文

摘要：CAHs, as a cleaning solvent, widely contaminated shallow groundwater with the development of manufacturing in China's Yangtze River Delta. This study focused on the distribution of CAHs, and correlations between CAHs and environmental variables in a shallow groundwater in Shanghai, using kriging interpolation and multifactorial analysis. The results showed that the overall CAHs plume area (above DIV) was approximately 9,000 m(2) and located in the 2-4 m underground, DNAPL was accumulated at an area of approximately 1,400 m(2) and located in the 6-8m sandy silt layer on the top of the muddy silty clay. Heat-map of PPC for CAHs and environmental variables showed that the correlation between "Fe2+" and most CAHs such as "1,1,1-TCA", "1,1-DCA", "1,1-DCE" and "% TCA" were significantly positive (p<0.001), but "% CA" and/or "% VC" was not, and "Cl-" was significantly positive correlated with "1,1-DCA" and "1,1-DCE" (p<0.001). The PCA demonstrated that the relative proportions of CAHs in groundwater were mostly controlled by the sources and the natural attenuation. In conclusion, the combination of geographical and chemometrics was helpful to establishing an aerial perspective of CAHs and identifying reasons for the accumulation of toxic dechlorination intermediates, and could become a useful tool for characterizing contaminated sites in general.