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| 秦淮河沉积物中重金属赋存特征及风险分析 | |
| 引用本文： | 刘月利,赵振华,夏立玲,刘娟,江莹. 秦淮河沉积物中重金属赋存特征及风险分析[J]. 安徽农业科学, 2010, 0(25): 13910-13912 |
| 作者姓名： | 刘月利 赵振华 夏立玲 刘娟 江莹 |
| 作者单位： | 1. 河海大学浅水湖泊综合治理与资源开发教育部重点实验室,江苏南京,210098;河海大学水文水资源与水利工程科学国家重点实验室,江苏南京,210098 2. 南京工业职业技术学院,江苏南京,210016 |
| 基金项目： | 国家自然科学基金重点项目，国家水体污染控制与治理科技重大专项，教育部浅水湖泊实验室开放基金，中央高校基本科研业务费专项基金 |
| 摘 要： | 利用电感耦合等离子体发射光谱仪对南京秦淮河水体及沉积物中的重金属Cd、Cr、Cu、Pb、Zn的含量及其在沉积物中的赋存形态进行了定量及界定。结果表明,秦淮河沉积物中重金属的含量较高,超过背景值最高达15.37倍。沉积物中Cd和Pb的主要赋存形态为铁锰结合态,Cr的主要赋存形态为有机结合态,Cu的主要赋存形态为有机结合态和可交换态,Zn的主要赋存形态为可交换态和铁锰结合态;Cu、Cr和Zn的有效态比例较高,潜在生态风险较大。主城区的拖板桥和珍珠桥采样点污染最严重,秦淮河上游来水污染最轻。 |
| 关 键 词： | 赋存形态 沉积物 重金属 生态风险 |
Occurrence Characters of Heavy Metals in Sediment in Qinhuai River and Its Risk Analysis |
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| LIU Yue-li et al. Occurrence Characters of Heavy Metals in Sediment in Qinhuai River and Its Risk Analysis[J]. Journal of Anhui Agricultural Sciences, 2010, 0(25): 13910-13912 | |
| Authors: | LIU Yue-li et al |
| Affiliation: | LIU Yue-li et al (Key Laboratory for Integrated Control , Resource Development of Shallow-water Lakes of Education Ministry,Hohai University,Nanjing,Jiangsu 210098) |
| Abstract: | The contents of heavy metals including Cd,Cr,Cu,Pb and Zn in water body and sediment of Qinhuai River in Nanjing and their occurrence forms in sediment were quantitated and confined by using inductively coupled plasma-optical emission spectrograph.The results showed that the contents of heavy metals in sediment of Qinhuai River were higher and its highest value reached 15.37 times of background values.The main occurrence forms of Cd and Pb in sediment was Fe-Mn combined forms,that of Cr was organic combined... |
| Keywords: | Occurrence forms Sediment Heavy metal Ecological risk |
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