Distribution and risk assessment of metals and arsenic contamination in man-made ditch sediments with different land use types
文献类型：期刊论文
| 作者 | Kumwimba, Mathieu Nsenga1,2,3,4 ; Zhu, Bo1,2,3; Wang, Tao1,2; Muyembe, Diana Kavidia5
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| 刊名 | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
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| 出版日期 | 2016-12-01 |
| 卷号 | 23期号:24页码:24808-24823 |
| ISSN号 | 0944-1344 |
| 关键词 | Man-made ditch sediment Metal/metalloid Land use Management Potential ecological risk indices Purple Sichuan Basin |
| 通讯作者 | Bo Zhu ; Tao Wang |
| 英文摘要 | Ditches are subjected to a large input of nutrients, trace metals, and arsenic and the enhancement of sedimentation due to human activities. However, the influence of different types of land uses on the distribution and associated environmental risk of metals and arsenic in the Red purple Sichuan Basin remains largely unclear, which is needed for water management. This study was carried out to characterize metal/metalloid status in ditch sediments from different land uses. A total of 68 surface sediment samples (0-5 cm) were collected from open ditches distributed in different land use types, i.e., cultivated ditches (CD), barren land ditches (BLD), roadside ditches (RSD), and residential ditches (RD), within the Sichuan Basin. Mean concentrations of Cr, Ni, Cu, Zn, Cd, Pb, and Mn in both RD and RSD were above the soil background values of Sichuan Basin, but Cd in ditch sediments of the basin posed considerable ecological risk to the environment. Overall, metals/metalloid (except Pb) decreased in the following order of RD > RSD > BLD > CD. Of the different land use types in the hilly region, residential and roadside land uses were likely to adverse effects on aquatic life. Multivariate statistical analysis showed that Mn, As, Cu, Ni, Zn, Fe, and Al were mainly influenced by natural weathering (erosion), while Pb might come from heavy vehicular traffic. The degree of contamination (Md), enrichment factor (EF), and the geo-accumulation index (Igeo) showed that Cd causes strong sediment pollution in the basin. Sediment quality guidelines SQG-Q values displayed that metals and arsenic created medium-low potential of adverse biological effects. These results provide baseline information on the metals and arsenic pollution in the Sichuan Basin. Awareness of land use type contributions to metals and arsenic requires that these man-made ditches be considered for their mitigation of pollutants in this region. |
| 学科主题 | 地球科学 ; 环境学 |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Environmental Sciences |
| 研究领域[WOS] | Environmental Sciences & Ecology |
| 关键词[WOS] | AGRICULTURAL DRAINAGE DITCHES ; HEAVY-METALS ; QUALITY GUIDELINES ; SICHUAN BASIN ; WATER-QUALITY ; UNITED-STATES ; CHINA ; POLLUTION ; SOILS ; RIVER |
| 收录类别 | SCI ; ISTP |
| 语种 | 英语 |
| WOS记录号 | WOS:000389301700029 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/17783]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Univ Lubumbashi, Fac Agron, Dept Nat Resources & Environm Management, POB 1825, Lubumbashi, Zaire 5.Southwest Jiaotong Univ, Sch Life Sci & Engn, Chengdu 610031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kumwimba, Mathieu Nsenga,Zhu, Bo,Wang, Tao,et al. Distribution and risk assessment of metals and arsenic contamination in man-made ditch sediments with different land use types[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2016,23(24):24808-24823. |
| APA | Kumwimba, Mathieu Nsenga,Zhu, Bo,Wang, Tao,&Muyembe, Diana Kavidia.(2016).Distribution and risk assessment of metals and arsenic contamination in man-made ditch sediments with different land use types.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,23(24),24808-24823. |
| MLA | Kumwimba, Mathieu Nsenga,et al."Distribution and risk assessment of metals and arsenic contamination in man-made ditch sediments with different land use types".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 23.24(2016):24808-24823. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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