Seasonal effects on contamination characteristics of tap water from rural Beijing: A multiple isotope approach

doi:10.1016/j.jhydrol.2020.125037

	Seasonal effects on contamination characteristics of tap water from rural Beijing: A multiple isotope approach
	Peters, Marc 1; Guo, Qingjun 1,2; Strauss, Harald 3; Wei, Rongfei 1; Li, Siliang 4; Yue, Fujun 4
刊名	JOURNAL OF HYDROLOGY
	2020-09-01
卷号	588 页码:10
关键词	Tap water Water quality Nitrate and sulfate Multiple isotopes Beijing rural area
ISSN号	0022-1694
DOI	10.1016/j.jhydrol.2020.125037
通讯作者	Guo, Qingjun(guoqj@igsnrr.ac.cn)
英文摘要	Excessive exploitation of the groundwater and discharge of urban and industrial wastewater into the environment led to a significant decline of the local surface and groundwater quality in many parts of the Beijing urban area. In the present study, tap water derived from deep groundwater (> 70 m depth) was collected in two seasons in the rural area around urban Beijing, China, in order to shed light on the hydrochemical composition of the local drinking water. For these, cation (Ca2+, K+, Mg2+, Na+, NH4+) and anion (Cl-, NO3-, SO42-, F-) concentrations were measured. In addition, multiple stable isotope (delta(15) N-nitrate, delta O-18(nitrate), delta S-34(sulfate), delta O-18(sulfate), Delta S-33(sulfate)) analyses were applied for identifying the specific hydrochemical processes and major contamination sources. The result showed that thirty percent of the analyzed tap water in the wet season and twenty-three percent in the dry season do not comply with the national legislation and represent a serious health risk, primarily due to high nitrate concentrations. Moreover, half of tap water could not be drunk due to the pollution of ammonium in wet season. Thereby, the most deteriorated tap water was derived from the highest populated areas in rural Beijing. Multiple isotopes reveal urban sewage as the dominant pollution source for deep groundwater as the principle tap water source. Therefore, it is necessary to control public and private sewage disposal and exchange leaking sewer pipes in order to reduce the risk of anthropogenic contamination of groundwater, representing the prime drinking water source in the Beijing area. This study demonstrates clearly the advantage of multi-isotope approach for evaluating water quality problems in urban groundwater.
资助项目	National Natural Science Foundation of China[41625006] ; National Natural Science Foundation of China[41761144066] ; National Natural Science Foundation of China[41561144005] ; National Natural Science Foundation of China[41890822] ; National Natural Science Foundation of China[41890824] ; Sino-German Center of China[GZ1055] ; Fellowship for Young International Scientists of Chinese Academy of Sciencees[XDB15020401]
WOS关键词	DISSOLVED SULFATE ; DRINKING-WATER ; FLUORIDE CONCENTRATION ; GROUNDWATER QUALITY ; RIVER-BASIN ; WASTE-WATER ; LAND-USE ; NITRATE ; CHINA ; DENITRIFICATION
WOS研究方向	Engineering ; Geology ; Water Resources
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000568826300077
资助机构	National Natural Science Foundation of China ; Sino-German Center of China ; Fellowship for Young International Scientists of Chinese Academy of Sciencees
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/156883]
专题	中国科学院地理科学与资源研究所
通讯作者	Guo, Qingjun
作者单位	1.Chinese Acad Sci, Ctr Environm Remediat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China 3.Westfalische Wilhelms Univ Munster, Inst Geol & Palaontol, Corrensstr 24, D-48149 Munster, Germany 4.Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China
推荐引用方式 GB/T 7714	Peters, Marc,Guo, Qingjun,Strauss, Harald,et al. Seasonal effects on contamination characteristics of tap water from rural Beijing: A multiple isotope approach[J]. JOURNAL OF HYDROLOGY,2020,588:10.
APA	Peters, Marc,Guo, Qingjun,Strauss, Harald,Wei, Rongfei,Li, Siliang,&Yue, Fujun.(2020).Seasonal effects on contamination characteristics of tap water from rural Beijing: A multiple isotope approach.JOURNAL OF HYDROLOGY,588,10.
MLA	Peters, Marc,et al."Seasonal effects on contamination characteristics of tap water from rural Beijing: A multiple isotope approach".JOURNAL OF HYDROLOGY 588(2020):10.