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.
出处
《自然灾害学报》
CSCD
北大核心
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)
关键词
贴不贴泡
沉积物
重金属
潜在生态风险评价
Tiebutie Pool
sediment
heavy metal
potential ecological risk assessment
