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基于标识指数与敏感性分析的洞庭湖滨湖区地下水重金属污染评价

姜燕松 李忠武 黄金权 赵新娜 张 燕 黄 斌 袁 敏

姜燕松, 李忠武, 黄金权, 赵新娜, 张 燕, 黄 斌, 袁 敏. 基于标识指数与敏感性分析的洞庭湖滨湖区地下水重金属污染评价[J]. 环境科学研究, 2013, 26(7): 736-742.
引用本文: 姜燕松, 李忠武, 黄金权, 赵新娜, 张 燕, 黄 斌, 袁 敏. 基于标识指数与敏感性分析的洞庭湖滨湖区地下水重金属污染评价[J]. 环境科学研究, 2013, 26(7): 736-742.
JIANG Yan-song, LI Zhong-wu, HUANG Jin-quan, ZHAO Xin-na, ZHANG Yan, HUANG Bin, YUAN Min. Assessments for Heavy Metals Pollution of Groundwater at Lakeside of the Dongting Lake Based on Identification Index and Sensitivity Analysis[J]. Research of Environmental Sciences, 2013, 26(7): 736-742.
Citation: JIANG Yan-song, LI Zhong-wu, HUANG Jin-quan, ZHAO Xin-na, ZHANG Yan, HUANG Bin, YUAN Min. Assessments for Heavy Metals Pollution of Groundwater at Lakeside of the Dongting Lake Based on Identification Index and Sensitivity Analysis[J]. Research of Environmental Sciences, 2013, 26(7): 736-742.

基于标识指数与敏感性分析的洞庭湖滨湖区地下水重金属污染评价

基金项目: 国家自然科学基金项目(41271294,51039001);国务院三峡办洞庭湖湿地保护试点示范工程项目(SX2010-026)

Assessments for Heavy Metals Pollution of Groundwater at Lakeside of the Dongting Lake Based on Identification Index and Sensitivity Analysis

  • 摘要: 以洞庭湖滨湖区城西垸为例,采用基于熵权的综合标识指数模型,探讨了滨湖区地下水中各重金属污染现状,分析了综合评价结果对各评价因子的敏感性程度,并针对不同评价方法的评价结果进行了对比. 结果表明:基于GB/T 14848—1993《地下水水环境质量标准》Ⅲ类水质标准,研究区ρ(Pb)、ρ(Fe)、ρ(Mn)的超标率均达到67%,最差水质类别分别为劣Ⅴ类、Ⅳ类和Ⅴ类;地下水重金属污染空间变异明显,其中湘江西支地下水污染最为严重,综合标识指数(4.126)最大,属于Ⅳ类水质,洞庭湖区次之,湘江东支地下水污染程度最轻(3.515),并且两支流地下水由上游至下游呈污染逐渐减轻的趋势;敏感性分析表明,综合评价结果对ρ(Pb)和ρ(Mn)的敏感性较强,敏感性系数分别为0.0539和0.0479,说明Pb、Mn是影响城西垸地下水水质变化的主要重金属污染物.

     

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出版历程
  • 收稿日期:  2013-01-09
  • 修回日期:  2013-05-15
  • 刊出日期:  2013-07-25

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