研究论文

贵阳地表水—地下水的硫和氯同位素组成特征及其污染物示踪意义

  • SatakeH. ,
  • 李思亮 ,
  • WUJiahong ,
  • 郎赟超 ,
  • 刘丛强
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  • 1.中国科学院地球化学研究所环境地球化学国家重点实验室,贵州 贵阳550002;2.富山大学理学部,日本 富山 930-8555
郎赟超(1976-),女,黑龙江大庆人,副研究员,博士,主要从事环境地球化学研究.E-mail:langyc822@163.com

收稿日期: 2007-08-20

  修回日期: 2008-01-02

  网络出版日期: 2008-02-10

基金资助

国家自然科学基金项目“大气和地表污染物输入对贵阳市地下水系统的影响:氯和硫同位素研究”(编号:40603004);国家重点基础研究发展计划项目[JP2]“西南喀斯特山地石漠化与适应性生态系统调控”(编号:2006CB403205);中国科学院西部行动计划项目“西南喀斯特生态系统退化机制与适应性修复试验示范研究”(编号:KZCX2-XB2-08-01)共同资助.

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

摘要

喀斯特地表水和地下水的交换活跃,地下水系统容易受到地表污染物的污染。为了解喀斯特城市地表水—地下水系统污染特征和污染物质来源,对贵阳市地表水、地下水、雨水和城市排污污水的硫同位素和氯同位素组成变化进行了研究。贵阳市不同类型水体的δ37Cl值在-4.07‰~+2.03‰之间变化,δ34SO4值变化为-20.4‰~+20.9‰。大气输入物质和城市排污污水的δ37Cl、δ34S及Cl-/SO42-比值与地表水和地下水的不同,稳定硫和氯同位素的结合研究为示踪地下水污染物来源提供了有效研究手段。贵阳市地下水中的Cl-和SO42-至少有4种来源,人为活动通过城市排污和大气输入向地下水系统大量输入了硫酸盐和氯离子。 

本文引用格式

SatakeH. , 李思亮 , WUJiahong , 郎赟超 , 刘丛强 . 贵阳地表水—地下水的硫和氯同位素组成特征及其污染物示踪意义[J]. 地球科学进展, 2008 , 23(2) : 151 -159 . DOI: 10.11867/j.issn.1001-8166.2008.02.0151

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.

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