Occurrences and Ecotoxicological Risk Assessment of Heavy Metals in Surface Sediments from Awash River Basin, Ethiopia
文献类型：期刊论文
| 作者 | Dirbaba, Niguse Bekele1,2; Yan, Xue2,3; Wu, Hongjuan1; Colebrooke, Luanettee' Lydia1; Wang, Jun2,3 |
| 刊名 | WATER
 |
| 出版日期 | 2018-05-01 |
| 卷号 | 10期号:5页码:14 |
| 关键词 | heavy metals sediment ecotoxicological risk Awash River Basin Ethiopia |
| ISSN号 | 2073-4441 |
| DOI | 10.3390/w10050535 |
| 英文摘要 | Like many areas in developing nations, rapid population growth, a high urbanization rate, and poor waste management practices have been observed in the Awash River Basin. Moreover, no comprehensive study has been conducted in this basin to evaluate sediment contamination with heavy metals. About 46 sampling locations were considered to study heavy metal concentrations, distributions, pollution levels, and potential ecological risks associated with these contaminants. The results indicate that average concentrations of all metals have exceeded their respective background values except Pb and Hg. A comparison with similar studies also revealed that sediments from the Awash River Basin had a high average value for Cd. The mean enrichment values of heavy metals increased in the order of Hg < As < Pb < Ni < Cu < Cr < Zn < Cd. Multivariate analysis revealed that Ni and Cu had common sources. The average potential ecological risk index (ERI = 355.54) indicates high potential toxicity response in the study area. In general, surficial sediment contamination with heavy metals is causing high ecological hazards in Awash River Basin. This study sheds lights on the current level of contamination of heavy metals which are widely distributed across the sediments of rivers and streams of Awash River Basin. |
| 资助项目 | Funding Project of Sino-Africa Joint Research Center, Chinese Academy of Sciences[Y623321K01] ; Hundred Talents Program of the Chinese Academy of Sciences[Y329671K01] ; Natural Science Key Foundation of Hubei Province of China |
| WOS研究方向 | Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000435196700001 |
| 出版者 | MDPI |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/5497]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Wu, Hongjuan; Wang, Jun |
| 作者单位 | 1.Huazhong Univ Sci & Technol, Sch Environm & Sci & Engn, Wuhan 430074, Hubei, Peoples R China 2.Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Hubei, Peoples R China 3.Chinese Acad Sci, Sino Africa Joint Res Ctr, Wuhan 430074, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dirbaba, Niguse Bekele,Yan, Xue,Wu, Hongjuan,et al. Occurrences and Ecotoxicological Risk Assessment of Heavy Metals in Surface Sediments from Awash River Basin, Ethiopia[J]. WATER,2018,10(5):14. |
| APA | Dirbaba, Niguse Bekele,Yan, Xue,Wu, Hongjuan,Colebrooke, Luanettee' Lydia,&Wang, Jun.(2018).Occurrences and Ecotoxicological Risk Assessment of Heavy Metals in Surface Sediments from Awash River Basin, Ethiopia.WATER,10(5),14. |
| MLA | Dirbaba, Niguse Bekele,et al."Occurrences and Ecotoxicological Risk Assessment of Heavy Metals in Surface Sediments from Awash River Basin, Ethiopia".WATER 10.5(2018):14. |
入库方式： OAI收割
来源：武汉植物园
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