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Geochemical and multiple stable isotope (N, O, S) investigation on tap and bottled water from Beijing, China
Marc Peters;  Qingjun Guo;  Harald Strauss;  Guangxu Zhu
2015
发表期刊Journal of Geochemical Exploration
卷号157页码:36-51
摘要

In the present study we investigated Beijing tap water from urban and suburban areas as well as bottled water from Beijing supermarkets with a focus on selected anions (Cl, NO3, SO42 −, F), metals and trace elements (Al, As, Co, Cr, Cu, Fe, Mn, Ni, Pb, Se, V, Zn), in order to reveal the degree of anthropogenic pollution and the ability of both water types to serve as a safe drinking water source. In addition, we applied multiple stable isotope (δ15Nnitrate, δ18Onitrate, δ34Ssulfate, δ18Osulfate, Δ33Ssulfate) analyses on Beijing tap water for the identification of specific pollution sources. 27% of the analyzed tap water samples show one or more constituents above the national guideline limits. 9% of the samples reveal concentrations above the NO3 limit, while 5% exceed the standard value for As, which makes this tap water unsuitable for daily consumption due to a serious health risk, especially for children and babies. The median concentrations of most analyzed compounds are significantly higher in Beijing tap water compared to European countries. Concentration and isotope data for tap water indicate urban sewage as the major origin of anthropogenic pollutants probably released by leaking wastewater pipes to the local groundwater as the principal tap water source. The results suggest industrial emissions and As-rich alluvial deposits as further but minor pollutant sources. In contrast, bottled water exhibits exclusively concentrations below the standard values and clearly lower median values compared to Beijing tap water. Hence, bottled water can be recommended as a valuable alternative to Beijing tap water, especially in areas where the pollutant levels in tap water are high. Moreover, the results reveal the problematic groundwater situation in Beijing and demonstrate the advantages of a combined geochemical and multiple isotope approach in order to uncover complex pollution mechanisms in metropolitan areas.

关键词Drinking Water Quality Urban Pollution Nitrate And Sulfate Arsenic Heavy Metals Beijing
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.gyig.ac.cn/handle/42920512-1/9534
专题环境地球化学国家重点实验室
作者单位1.Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
2.Westfälische Wilhelms-Universität Münster, Institut für Geologie und Paläontologie, Corrensstr. 24, 48149 Münster, Germany
3.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
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Marc Peters;Qingjun Guo;Harald Strauss;Guangxu Zhu. Geochemical and multiple stable isotope (N, O, S) investigation on tap and bottled water from Beijing, China[J]. Journal of Geochemical Exploration,2015,157:36-51.
APA Marc Peters;Qingjun Guo;Harald Strauss;Guangxu Zhu.(2015).Geochemical and multiple stable isotope (N, O, S) investigation on tap and bottled water from Beijing, China.Journal of Geochemical Exploration,157,36-51.
MLA Marc Peters;Qingjun Guo;Harald Strauss;Guangxu Zhu."Geochemical and multiple stable isotope (N, O, S) investigation on tap and bottled water from Beijing, China".Journal of Geochemical Exploration 157(2015):36-51.
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