| 淮河流域安徽段水系沉积物中重金属的分布与赋存形态 |
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| 引用本文： | 陈孝杨,严家平,况敬静,黄凯.淮河流域安徽段水系沉积物中重金属的分布与赋存形态[J].合肥工业大学学报(自然科学版),2009,32(3). |
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| 作者姓名： | 陈孝杨 严家平 况敬静 黄凯 |
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| 作者单位： | 安徽理工大学,地球与环境学院,安徽,淮南,232001 |
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| 基金项目： | 安徽省高校省级自然科学项目 |
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| 摘 要： | 基于对淮河流域安徽段水系中7条河流的21个沉积物样品的实验研究,获得了Cd、Pb、Mn和Ba等4种重金属的含量数据,分析了沉积物中重金属的分布特征和赋存形态.在此基础上,应用地积累指数法综合评价了沉积物中重金属的污染状况;结果表明:研究区内水系沉积物中的Mn和Cd主要以弱酸提取态与结晶态的形式赋存,Ba主要以结晶态的形式出现,Pb主要以可还原态和结晶态的形式赋存;重金属的分布受多种因素的影响,在研究区水系沉积物中的分布存在一定规律;研究区水系沉积物中重金属污染总体较轻微,部分河段沉积物中出现了Cd和Mn的污染迹象.
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| 关 键 词： | 淮河流域 沉积物 重金属 分布特征 赋存形态 |
Distribution and occupied state of heavy metals in sediment of rivers of the Anhui Section in the Huaihe River Basin |
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| CHEN Xiao-yang,YAN Jia-ping,KUANG Jing-jing,HUANG Kai.Distribution and occupied state of heavy metals in sediment of rivers of the Anhui Section in the Huaihe River Basin[J].Journal of Hefei University of Technology(Natural Science),2009,32(3). |
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| Authors: | CHEN Xiao-yang YAN Jia-ping KUANG Jing-jing HUANG Kai |
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| Institution: | School of Earth and Environment;Anhui University of Science and Technology;Huainan 232001;China |
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| Abstract: | Based on the experimental study of 21 sediment samples from seven rivers of the Anhui section in the Huaihe River Basin,the content of four heavy metals including Cd,Pb,Mn and Ba is obtained.By making use of the content data,the distribution characteristics and occupied state of heavy metals in the sediment are analyzed.The pollution state of heavy metals in sediment is assessed by the index of geo-accumulation.The research results show that some heavy metals(such as Mn and Cd) existed in sediment for weak ... |
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| Keywords: | Huaihe River Basin sediment heavy metal distribution characteristic occupied state |
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