泡沼沉积物重金属污染及其潜在生态危害评价——大庆市贴不贴泡案例研究  

Pollution of heavy metal in pool's sediment and assessment of its potential ecological hazard:a case study on Tiebutie Pool in Daqing City

作　　者：张思冲[1] 李丽颖[2] 叶华香[2] 张敏[2] 

机构地区：[1]东北林业大学林学院,黑龙江哈尔滨150040 [2]哈尔滨师范大学生命与环境科学学院,黑龙江哈尔滨150080

出　　处：《自然灾害学报》2007年第2期148-153,共6页Journal of Natural Disasters

基　　金：国家自然科学基金资助项目(40271044);哈尔滨师范大学骨干教师基金资助项目(KJ2006-01)

摘　　要：对贴不贴泡沉积物中的重金属含量进行了分析测定,利用Hakanson潜在生态风险指数方法对其生态危害程度进行了评价。结果表明:贴不贴泡沉积物中Hg,As,Cd,Cu等重金属含量呈现从东南向西北递减的变化特点,而Zn,Cr,Ni,Pb等重金属元素的含量分布则无明显规律。生态风险评价显示,除Cd元素具极强危害外,其余重金属元素均仅具轻微危害。This paper dealt with the contents of the heavy metals in sediment of Tiebutie Pool, and the method of potential ecological risk index presented by Lars Hakanson was used to assess the ecological hazard of the heavy metals. The result shows that the contents of Hg, As, Cd and Cu appear as gradually degressive from southeast to northwest, while those of Zn, Cr, Ni, Pb appear no apparent rule. The ecological risk assessment of the heavy metal reveals that except Cd, which belongs to extreme potential ecological hazard, most heavy metals belong to light potential ecological hazard.

关 键 词：贴不贴泡 沉积物 重金属 潜在生态风险评价 

分 类 号：X131.2[环境科学与工程—环境科学]