期刊论文

中文

长江流域资源与环境

1004-8227

2010

S1

183-189

湖南农业大学青年基金项目（08QN05;08QN04）； 湖南省畜牧水产局重点项目（BK0937）；

本校为第一机构

水域环境是水生生物赖以生存及渔业资源持续健康发展的基础。水环境中重金属的含量直接关系到水产品的质量和安全。为评估长江中游典型湖泊的渔业水环境,本研究以大通湖为例,测定了其湖水及沉积物重金属含量,采用地质累积指数法与潜在生态危害指数法对沉积物重金属的污染状况进行了评价,并对长江中游典型湖泊沉积物重金属污染状况及环境风险进行了评估。结果表明:大通湖水中As、Cd、Cu、Pb和Zn的含量均符合国家渔业水质标准要求,除S7、S17、S33和S39点位Zn的含量属国家地表水Ⅱ类以外,其他所有点位的5种重金属的含量均低于国家地表水I类标准。大通湖沉积物中As、Cd、Cr、Cu、Pb和Zn的含量均高于...

Water environment is the foundation for aquatic organisms to survival and for fisheries resources to develop sustainably and healthily.The content of heavy metals in water environment is directly related to the quality and safety of aquatic products.To appraise the water environment of typical lakes in the middle reaches of the Yangtze River,content of heavy metals in water and sediment of the Datong Lake was measured,the pollution of sediment heavy metals was evaluated by the methods of geoaccumulation index and potential ecological risk index,and the pollution and the potential ecological ri...