Toxicity and bioaccumulation of ethofumesate enantiomers in earthworm Eisenia fetida
文献类型：期刊论文
| 作者 | Wang, Huili
|
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2014 |
| 卷号 | 112期号:1页码:163-169 |
| 关键词 | Earthworm Ethofumesate Toxicity Bioaccumulation Elimination |
| ISSN号 | 0045-6535 |
| 中文摘要 | Earthworms represent an important food source for many vertebrates and as a result, predators may encounter toxic effects via the food chain from consumption of contaminated worms. Therefore, including an assessment of xenobiotic to worms in risk assessment procedures is advisable. Here we studied the acute toxicity, bioaccumulation and elimination of ethofumesate enantiomers in earthworm, Eisenia fetida, in a soil. A slight difference in toxicity to earthworm between two enantiomers was found, and the calculated LC50 values for (+)-, rac- and (-)-ethofumesate were 4.51, 5.93 and 7.98 mu g/cm(2), respectively, indicating that the acute toxicity of ethofumesate enantiomers was enantioselective. Earthworm can uptake ethofumesate but the bioaccumulation curve did not reach the steady state. In the elimination experiment, the concentrations of ethofumesate in earthworm declined following a first-order decay model with a short half life of 1.8 d. The bioaccumulation and elimination of ethofumesate in earthworm were both nonenantioselective. In combination with other studies, a linear relationship between Log BSAFs and Log K-ow, was observed, and the Log BSAFs increased with increasing Log K-ow. But the elimination rate did not show any correlation with the K-ow value. (C) 2014 Elsevier Ltd. All rights reserved. |
| WOS记录号 | WOS:000340688300022 |
| 公开日期 | 2015-03-26 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/9678]  |
| 专题 | 生态环境研究中心_中国科学院环境生物技术重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Huili. Toxicity and bioaccumulation of ethofumesate enantiomers in earthworm Eisenia fetida[J]. CHEMOSPHERE,2014,112(1):163-169. |
| APA | Wang, Huili.(2014).Toxicity and bioaccumulation of ethofumesate enantiomers in earthworm Eisenia fetida.CHEMOSPHERE,112(1),163-169. |
| MLA | Wang, Huili."Toxicity and bioaccumulation of ethofumesate enantiomers in earthworm Eisenia fetida".CHEMOSPHERE 112.1(2014):163-169. |
入库方式： OAI收割
来源：生态环境研究中心
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