首页 | 本学科首页   官方微博 | 高级检索  
     检索      

河流底泥重金属污染及潜在生态风险评价——以湘江株洲段为例
引用本文:漆燕,成应向,刘湛,肖亚琼.河流底泥重金属污染及潜在生态风险评价——以湘江株洲段为例[J].四川环境,2011,30(6):104-107.
作者姓名:漆燕  成应向  刘湛  肖亚琼
作者单位:湖南省环境保护科学研究院,长沙,410004
基金项目:国家水体污染控制与治理科技重大专项(2009ZX07212-001-07)
摘    要:通过对湘江株洲段6个监测断面左右两岸共32个底泥样品重金属Pb,Zn,Cd,As,Hg和Cr质量比进行分析研究,并进行潜在生态风险评价。结果表明:霞湾断面是重金属富集最严重的断面;Cd,Hg和As的含量均超过GB15618—1995三级标准和长沙-湘潭-株洲3市土壤背景值;重金属含量大部分分布特征为右岸高于左岸;从重金属污染的潜在生态风险看,湘江株洲段各监测断面潜在生态风险都很高;各重金属元素对生态风险影响程度从大到小的顺序为:Hg〉Cd〉As〉Pb〉Zn〉Cr。

关 键 词:河流底泥  重金属  生态风险  湘江株洲段  评价

Pollution and Potential Ecological Risk Assessment of Heavy Metals in River Sediments -Case Study on the Zhuzhou Section of Xiang River
QI Yan,CHENG Ying-xiang,LIU Zhan,XIAO Ya-qiong.Pollution and Potential Ecological Risk Assessment of Heavy Metals in River Sediments -Case Study on the Zhuzhou Section of Xiang River[J].Sichuan Environment,2011,30(6):104-107.
Authors:QI Yan  CHENG Ying-xiang  LIU Zhan  XIAO Ya-qiong
Institution:QI Yan,CHENG Ying-xiang,LIU Zhan,XIAO Ya-qiong (Hunan Research Academy of Environmental Sciences,Changsha 410004,China)
Abstract:The contents of heavy metals including Pb,Zn,Cd,As,Hg and Cr in 32 sediment samples collected from the both banks of Zhuzhou section of Xiang River were analyzed,and the potential ecological risk was evaluated.It is concluded that Xiawan section concentrates the heavy metal most,where the contents of Cd,Hg and As exceeded the three standard GB15618-1995 and the background level of soils in the cities of Changsha,Xiangtan and Zhuzhou.The heavy metals distributes as the right bank higher than the left bank.Th...
Keywords:River sediment  heavy metals  ecological risk  Zhuzhou section of Xiang River  assessment  
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号