Investigation of heavy metals release from sediment with bioturbation/bioirrigation
文献类型：期刊论文
| 作者 | Wang, Dongsheng; He, Yi; Men, Bin; Yang, Xiaofang; Li, Yaxuan; Xu, Hui |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2017-10-01 |
| 卷号 | 184期号:0页码:235-243 |
| 关键词 | Heavy Metals Dgt Bioturbation/bioirrigation Bioaccumulation |
| 英文摘要 | Bioturbation/bioirrigation can affect the remobilization of metals from sediments. In this study, experiments were performed to examine the effect of bioturbation/bioirrigation by different organisms on cadmium (Cd), copper (Cu), zinc (Zn) and lead (Pb) releasing from the spiked sediment. The diffusive gradient in thin films technique (DGT) revealed that at the end of exposure time, the labile heavy metals concentrations in the pore water for all metal and organisms combinations except Cu and chironomid larvae were much lower than that in the control group. However, the concentrations of heavy metals detected by the DGT were virtually indistinguishable among the treatments with tubificid, chironomid larvae and loath. The correlation analysis of heavy metals with iron (Fe) and manganese (Mn) suggested that Cd, Zn and Pb were most likely bound as Fe-Mn oxidation form in the pore water, but Cu was in other forms. After 28 d of exposure, bioturbation/bioirrigation produced a significant release of particulate heavy metals into the overlying water, especially in the treatment with loath. The bioturbation/bioirrigation impact on the Pb remobilization was less than the other three heavy metals. The effects of bioturbaiton/bioirrigation on the heavy metals remobilization in the sediment were complex that with studying the heavy metals remobilization in the sediment and water interface, the biological indicators should be recommended. (C) 2017 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39520]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Dongsheng,He, Yi,Men, Bin,et al. Investigation of heavy metals release from sediment with bioturbation/bioirrigation[J]. CHEMOSPHERE,2017,184(0):235-243. |
| APA | Wang, Dongsheng,He, Yi,Men, Bin,Yang, Xiaofang,Li, Yaxuan,&Xu, Hui.(2017).Investigation of heavy metals release from sediment with bioturbation/bioirrigation.CHEMOSPHERE,184(0),235-243. |
| MLA | Wang, Dongsheng,et al."Investigation of heavy metals release from sediment with bioturbation/bioirrigation".CHEMOSPHERE 184.0(2017):235-243. |
入库方式： OAI收割
来源：生态环境研究中心
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