主办单位：中国气象局沈阳大气环境研究所
国际刊号：ISSN 1673-503X
国内刊号：CN 21-1531/P
气象与环境学报

气象与环境学报 ›› 2013, Vol. 29 ›› Issue (1): 108-112.doi:

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大伙房水库表层沉积物重金属污染及潜在生态风险评价

任泓泉1 胡成2   

  1. 1.辽宁大学环境学院，辽宁 沈阳 110036；2.辽宁省环境科学研究院，辽宁 沈阳 110031
  • 出版日期:2013-02-28 发布日期:2013-02-28

Potential ecological risk assessment of heavy metal pollution in surface sediment of the Dahuofang reservoir

REN Hong-quan1 HU Cheng2   

  1. 1.School of Environmental Science, Liaoning University, Shenyang 110036, China; 2. Liaoning Academy of Environmental Science, Shenyang 110031, China
  • Online:2013-02-28 Published:2013-02-28

PDF (PC)

544

被引次数

8

摘要： 大伙房水库是辽河流域典型水库饮用水源地。由于汇水区周边工矿废水的排放，重金属污染问题一直比较突出。为研究水库受重金属污染影响的情况，采用Hakanson潜在生态风险指数法对大伙房水库表层沉积物中重金属Cr、Cu、Zn、Cd、Pb的含量及分布进行分析，并对其污染程度及潜在生态风险危害进行评价，评价结果用地累积指数法进行验证。结果表明：大伙房水库表层沉积物中潜在生态危害最大的重金属元素为Cd，5种重金属元素潜在生态风险危害程度由大到小的顺序为Cd＞Cu＞Pb＞Cr＞Zn。

关键词: 大伙房水库, 重金属污染, 潜在生态风险评价

Abstract: The Dahuofang reservoir is a typical drinking water source in the Liaohe River basin. However, the heavy metal pollution is an important problem for the Dahuofang reservoir due to waste water discharges from the surround industrial enterprises. The contents and distribution of the heavy metal in the surface sediment of reservoir such as Cr, Cu, Zn, Cd and Pb were analyzed by a Hakanson potential ecological risk index method in order to study pollution situation. The pollution extent and potential ecological risk were evaluated, and the evaluation results were tested by a geoaccumulation index method. The results indicate that Cd is the primary pollution element of potential ecological risk in surface sediment of the Dahuofang reservoir. The ecological risk order of five pollution elements is as follows: Cd>Cu>Pb>Cr>Zn.

Key words: Dahuofang reservoir, Heavy metal pollution, Potential ecological risk assessment