| 巢湖十五里河沉积物污染特征及来源分析 |
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| 引用本文： | 李如忠,洪齐齐,罗月颖.巢湖十五里河沉积物污染特征及来源分析[J].环境科学研究,2010,23(2):144-151. |
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| 作者姓名： | 李如忠 洪齐齐 罗月颖 |
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| 作者单位： | 合肥工业大学资源与环境工程学院,安徽,合肥,230009 |
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| 基金项目： | 安徽省“十一五”科技攻关计划重点项目(07010302165) |
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| 摘 要： | 在巢湖十五里河河道上采集15个沉积物柱样,按10 cm厚度分层,得到85个沉积物样品.通过实验室分析得到沉积物中w(TN),w(TP),w(TOC),w(Cu),w(Zn),w(Pb),w(Cd),w(Cr)以及w(Al).在此基础上,对十五里河沉积物中营养元素和重金属污染特征及来源进行分析.结果表明,沉积物中w(TN),w(TP)和w(TOC)存在显著相关性;w(TOC)与w(Cu),w(Zn),w(Pb),w(Cd)和w(Cr)等均具有较强的正相关关系.由富集系数分析判定,表层沉积物中Cd和Cu为中度污染,Zn,Pb和Cr为轻度污染.人为贡献率分析表明,Cd受人为活动影响最大.根据多变量分析结果,结合流域主要污染源情况,初步断定化肥企业生产排污是十五里河沉积物营养元素和重金属的最主要来源,而农田水土流失和生活污水排放也是不可忽视的重要因素.
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| 关 键 词： | 沉积物 重金属 营养元素 十五里河 巢湖 |
| 收稿时间： | 2009/7/30 0:00:00 |
| 修稿时间： | 2009/9/17 0:00:00 |
Pollution Characteristics and Source Analysis of Contaminants in Bed Sediments from Shiwuli River, Chaohu Lake |
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| LI Ru-zhong,HONG Qi-qi and LUO Yue-ying.Pollution Characteristics and Source Analysis of Contaminants in Bed Sediments from Shiwuli River, Chaohu Lake[J].Research of Environmental Sciences,2010,23(2):144-151. |
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| Authors: | LI Ru-zhong HONG Qi-qi and LUO Yue-ying |
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| Institution: | LI Ru-zhong,HONG Qi-qi,LUO Yue-yingSchool of Resources , Environmental Engineering,Hefei University of Technology,Hefei 230009,China |
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| Abstract: | Along the Shiwuli River,15 sediment cores were collected,and then a total of 85 samples for the sediment cores were divided with a thickness of 10 cm.The content levels of nutrient elements(TN,TP and TOC) and metals(Cu,Zn,Pb,Cd,Cr and Al) in the sediments were obtained through laboratory analysis.Pollution characteristics and source identifications of total heavy metals and nutrient elements were performed according to the analyzed data.Study results showed that there was obvious correlation between TN,TP a... |
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| Keywords: | sediments heavy metal nutrient element Shiwuli River Chaohu Lake |
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