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| 漓江沉积柱重金属垂向分布特征及污染评价 | |
| 引用本文： | 伍婷婷,李平阳,莫创荣,李杰,战明国,王英辉,林卫东.漓江沉积柱重金属垂向分布特征及污染评价[J].环境保护科学,2012,38(6):14-16,59. |
| 作者姓名： | 伍婷婷 李平阳 莫创荣 李杰 战明国 王英辉 林卫东 |
| 作者单位： | 1. 广西大学环境学院,广西南宁,530004 2. 广西壮族自治区地质矿产开发局,广西南宁,530023 3. 广西环境保护科学研究院,广西 南宁,530022 |
| 基金项目： | 国家自然基金，广西北部湾经济区基础研究重大专项，广西青年科学基金 |
| 摘 要： | 对桂林漓江3个采样点沉积柱状沉积物中主要重金属元素(Cd、Cr、Cu、Zn、Pb、As和Ni)的垂向分布进行了测定。结果表明:7种重金属元素具有相似的垂向变化特征;横向上表现为靠近市区的含量高远离,市区的含量低。地积累指数评价结果显示,远离市区的沉积柱7种金属污染程度较轻,仅有Cd和Ni属于无～中污染程度。临近市区的沉积柱形成污染的元素为Cd、Cu、Zn、Pb和As,主要集中在底层和次表层。 |
| 关 键 词： | 漓江 沉积柱 重金属 分布特征 风险评价 |
Vertical Distribution and Pollution Assessment of Heavy Metals in Sediment Core of Lijiang River |
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| Wu Tingting, Li Pingyang, Mo Chuangrong, Li Jie, Zhan Mingguo, Wang Yinghui, Lin Weidong.Vertical Distribution and Pollution Assessment of Heavy Metals in Sediment Core of Lijiang River[J].Environmental Protection Science,2012,38(6):14-16,59. | |
| Authors: | Wu Tingting Li Pingyang Mo Chuangrong Li Jie Zhan Mingguo Wang Yinghui Lin Weidong |
| Institution: | Wu Tingting, Li Pingyang, Mo Chuangrong, Li Jie, Zhan Mingguo, Wang Yinghui, Lin Weidong |
| Abstract: | The vertical distributions of heavy metals (Cd、Cr、Cu、Zn、Pb、As and Ni) in the columnar sediments at 3 sampling sites in Lijiang River, Guilin City were determined. The results showed that: similar change tendency existed among 7 heavy metals in the columnar sediments. The contents of heavy metals near Guilin City were higher than that far from the city in horizontal direction. The results of index of geoaccumulation evaluation showed that the pollution of 7 kinds of heavy metals in the column sediments far from the city was light, only Cd and Ni were in the non～middle pollution levels. Near city, the pollution elements in the sediment column were Cd, Cu, Zn, Pb and As, which mainly concentrated at the bottom and subsurface. |
| Keywords: | Lijiang River Sediment Core Heavy Metals Distribution Characteristics Risk Assessment |
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