Articles

δ37Cl and δ34S variations of Cl- and SO42- in Groundwater and Surface Water of Guiyang Area, China

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  • 1.The State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002,China; 2.Department of Environmental Biology and Chemistry, Toyama University, Toyama 930-8555, Japan

Received date: 2007-08-20

  Revised date: 2008-01-02

  Online published: 2008-02-10

Abstract

Due to active exchange between surface water and ground water in a karstic hydrological system, we carried out a study of δ37Cl and δ34S variations of chloride and sulfate ions in the karstic surface/ground water system of Guiyang city, southwestern China, with the main purpose to understand ground water environmental pollution and the sources of the contaminants. The surface, ground, rain and waste water show variable δ37Cland δ34S values, with δ37Cl values varying between -4.07‰ and +2.03‰, and δ34S values between -20.4‰ and +20.9‰。The studied atmospheric and anthropogenic inputs have specific range of δ37Cl and δ34S values, which can provide an effective isotopic method for tracing contaminants in a ground water system. We conclude that at least four sources exist to account for the variations of δ37Cl and δ34S values of chloride and sulfate ions in the ground water system, and that human activities have inputted a significant amount of sulfate and chloride ions, as well as other contaminants into the studied ground water system through atmospheric emission and municipal sewage.

Cite this article

Lang Yunchao,Liu Congqiang,Satake Hiroshi,Wu Jiahong,Li Siliang . δ37Cl and δ34S variations of Cl- and SO42- in Groundwater and Surface Water of Guiyang Area, China[J]. Advances in Earth Science, 2008 , 23(2) : 151 -159 . DOI: 10.11867/j.issn.1001-8166.2008.02.0151

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