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江阴市河流底栖动物中重金属含量及评价研究
引用本文:张洁,宋晓兰,陈渊,黄振荣.江阴市河流底栖动物中重金属含量及评价研究[J].环境科学与管理,2014,39(10):150-154.
作者姓名:张洁  宋晓兰  陈渊  黄振荣
作者单位:江阴市环境监测站,江苏江阴,214400
基金项目:江苏省科技厅自然科学基金资助项目,江苏省环境监测科研基金项目
摘    要:根据2010年10月对江阴市7条主要内河及长江江阴段的调查数据,分析了江阴市主要河流水体、表层沉积物及底栖动物对重金属的富集情况.结果表明,江阴市主要河流水体中的重金属含量都好于地表水Ⅲ类水标准;表层沉积物重金属含量也较低;根据底栖动物体内重金属含量、生物浓缩因子BCF和生物-沉积物富集因子BSAF,底栖动物对重金属有较强的富集能力,尤其是分布较广的水丝蚓,指示了张家港河、应天河沉积物中重金属污染较为严重.

关 键 词:底栖动物  重金属  沉积物  江阴

Concentrations and Assessment of Heavy Metals in Benthos in Main Rivers of Jiangyin City
Zhang Jie,Song Xiaolan,Chen Yuan,Huang Zhenrong.Concentrations and Assessment of Heavy Metals in Benthos in Main Rivers of Jiangyin City[J].Environmental Science and Management,2014,39(10):150-154.
Authors:Zhang Jie  Song Xiaolan  Chen Yuan  Huang Zhenrong
Institution:(Jiangyin Environmental Monitoring Station, Jiangyin 214400, China)
Abstract:Based on the survey data from seven main rivers and Jiangyin section of Yangtze River, the concentrations and dis- tributions of heavy metals in surface water, surface sediments and benthos were studied. Results showed that the concentrations of heavy metals in water were better than class 19 in the national surface water standard, revealing that the sediment quality was good. According to the concentrations of heavy metals in benthos, bio - concentration factors (BCF) and biota - sediment accu- mulation factors( BSAF), the benthos collected from the studied rivers, especially limnodrilus which was distributed widely, had great accumulation capacities of heavy metals. It is indicated that heavy metal pollution of sediment in Zhangjiagang River and Yingtian River were much severer.
Keywords:benthos  sediment  heavy mental  Jiangyin
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