Occurrence, speciation and transportation of heavy metals in 9 coastal rivers from watershed of Laizhou Bay, China
文献类型：期刊论文
| 作者 | Wang, Jihua; Xu, Li; Wang, Tieyu; Lu, Anxiang |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2017-04-01 |
| 卷号 | 173期号:1页码:61-68 |
| 关键词 | Heavy Metals Risk Assessment Speciation Transportation Jie River |
| 英文摘要 | The occurrence, speciation and transport of heavy metals in 9 coastal rivers from watershed of Laizhou Bay were investigated. The largest dissolved concentrations of Cd, Cu and Zn in water were 6.26, 2755.00, 2076.00 mu g/L, respectively, much higher than several drinking water guidelines. The greatest concentrations of Cu, Zn, Cr, Ni, Pb and Cd in sediments were 1462, 1602, 196, 67.2, 63.5 and 1.41 mg/kg, dw, respectively. Correlation and principal component analysis was also conducted to determine the extent between the concentrations of metals in water and sediment, as well as relevant parameters. Throughout the river stretch, most of Cr Zn, Cr, Ni and Pb bound to residual fraction, however, Cd was preferentially bound to the exchangeable phase. Among the 9 rivers, Yellow river account for 72.5%, 67.5%, 55.4%, 59.4%, 79.4% and 85.5% for Cr, Ni, Cu, Zn. Cd and Pb, respectively. The combined potential ecological risk indexes were used to evaluate potential risks. The majority of sampling sites from watershed of Laizhou Bay have moderate ecological risk from metals. The government should pay more attention to the ecological risk of river ecosystem which flow to Laizhou Bay. (C) 2017 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39064]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Jihua,Xu, Li,Wang, Tieyu,et al. Occurrence, speciation and transportation of heavy metals in 9 coastal rivers from watershed of Laizhou Bay, China[J]. CHEMOSPHERE,2017,173(1):61-68. |
| APA | Wang, Jihua,Xu, Li,Wang, Tieyu,&Lu, Anxiang.(2017).Occurrence, speciation and transportation of heavy metals in 9 coastal rivers from watershed of Laizhou Bay, China.CHEMOSPHERE,173(1),61-68. |
| MLA | Wang, Jihua,et al."Occurrence, speciation and transportation of heavy metals in 9 coastal rivers from watershed of Laizhou Bay, China".CHEMOSPHERE 173.1(2017):61-68. |
入库方式： OAI收割
来源：生态环境研究中心
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