沉积物中重金属污染程度生物毒性评价  

Biotoxicity Evaluation of Heavy Metal Pollution in Sediments

作　　者：尹君静 杨鸿波 蒋云 谭红 何锦林 

机构地区：[1]贵州省分析测试研究院,贵阳550002

出　　处：《贵州科学》2015年第4期88-93,共6页Guizhou Science

基　　金：国家国际科技合作计划项目(2011DFB41640)

摘　　要：根据目前国际上沉积物对重金属毒性评价的进展对沉积物中重金属的潜在危害,本文结合沉积物中重金属主要的结合相、形态,介绍沉积物中重金属的形态提取方法,可应用沉积物质量基准法和Ha Kanson潜在生物风险指数法,以及生态危害指数与污染系数,分析沉积物中重金属污染状况和生态危害程度,揭示沉积物中重金属生物毒性。The potential hazards of heavy metal were evaluated according to the current status of the study on bio- toxicity evaluation of heavy metal pollution in sediments. The investigation is taken on the combination of main bind- ing phases and fractions of heavy metal in sediments to introduce the extraction method of heavy metal. Sediment quality guideline, HaKanson potential biological risk index method, ecological risk index and contamination coeffi- cient are applied to analyze the pollution status of heavy metal in sediment and the degree of ecological damage. It illustrates the biotoxicitv ofheavy metal in sediments.

关 键 词：水沉积物 重金属 形态提取 生态毒性 

分 类 号：X832[环境科学与工程—环境工程]