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| 武汉典型湖泊沉积物中重金属累积特征及其环境风险 | |
| 引用本文： | 唐阵武,程家丽,岳勇,陈玉敏.武汉典型湖泊沉积物中重金属累积特征及其环境风险[J].湖泊科学,2009,21(1):61-68. |
| 作者姓名： | 唐阵武 程家丽 岳勇 陈玉敏 |
| 作者单位： | 1. 华北电力大学能源与环境研究中心,北京,102206;水环境模拟国家重点实验室,北京师范大学环境学院,北京,100875 2. 华北电力大学能源与环境研究中心,北京,102206 3. 水环境模拟国家重点实验室,北京师范大学环境学院,北京,100875;中国石油集团安全环保技术研究院,北京,100083 4. 水环境模拟国家重点实验室,北京师范大学环境学院,北京,100875 |
| 基金项目： | 国家重点基础研究发展规划(973计划)，华北电力大学校博士基金 |
| 摘 要： | 采集武汉市8个典型湖泊的表层沉积物,分析11种重金属的含量及其不同形态组成,研究了不同湖泊金属元素的富集与污染程度,探讨了沉积物中重金属的污染来源及其潜在生态风险,结果表明,沉积物中重金属Cd累积最严重,Zn和Hg也发生明显累积,龙阳湖污染较重,南太子湖和墨水湖污染中等,其它湖泊污染总体较轻.沉积物性质对重金属累积的影响不显著,城市工业活动强烈影响着重金属的分布,不同重金属的形态分布差异较大,Cd生物可利用态含量最高,其次为Mn、Zn、Co、Cu和Pb;而Sb和Hg以残留态占绝对优势,生态风险较小,相关分析和主成分分析表明,化石燃料燃烧、金属冶炼等是武汉市湖泊沉积物中重金属来源的主要贡献者,同时岩石风化等地球化学过程也影响着重金属的污染. |
| 关 键 词： | 湖泊沉积物 重金属地累积指数 形态 主成分分析 武汉 |
| 收稿时间： | 2008/5/26 0:00:00 |
| 修稿时间： | 2008/10/21 0:00:00 |
Accumulations and risks of heavy metals in the sediments from 8 typical lakes in Wuhan, China |
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| TANG Zhenwu,CHENG Jiali,YUE Yong and CHEN Yumin.Accumulations and risks of heavy metals in the sediments from 8 typical lakes in Wuhan, China[J].Journal of Lake Science,2009,21(1):61-68. | |
| Authors: | TANG Zhenwu CHENG Jiali YUE Yong and CHEN Yumin |
| Institution: | 1;2;2;3;1:Energy and Environmental Research Center;North China Electric Power University;Beijing 102206;P.R.China;2:State Key Laboratory of Water Environment Simulation;School of Environment;Beijing Normal University;Beijing 100875;P.R.China;3:Institute of Safety and Environment Protection Technology of China National Petroleum Corporation;P.R.China |
| Abstract: | The content and species of 11 heavy metals in surface sediments from 8 typical lakes located in Wuhan,China,were investigated,and the accumulation,contamination,potential ecological risks and possible sources of metals were discussed in this paper.According to the metal geoaccumulation indexes,the results showed that the lake sediments had heavily polluted by Cd and evidently by Zn and Hg.On the whole,heavy pollutions of metals were observed in Lake Longyang and medium pollution in Lake Nantaizi and Lake Mo... |
| Keywords: | Lake sediments heavy metals index of geoaccumulation speciation principal component analysis Wuhan |
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