| 全氟辛酸(PFOA)对蚯蚓的毒性作用 |
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| 引用本文： | 徐冬梅,李婵丹,王艳花.全氟辛酸(PFOA)对蚯蚓的毒性作用[J].生态毒理学报,2012,7(5):532-536. |
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| 作者姓名： | 徐冬梅 李婵丹 王艳花 |
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| 作者单位： | 1. 浙江树人大学生物与环境工程学院,杭州,310015
2. 浙江大学环境科学研究所,杭州,310058 |
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| 基金项目： | 国家自然科学基金青年基金项目(20907046) |
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| 摘 要： | 为考察全氟化合物的土壤生态毒性,以赤子爱胜蚓为模式生物,通过人工土壤染毒方法研究全氟辛酸(PFOA)对蚯蚓急性毒性、回避行为和SOD、CAT等抗氧化酶活性的影响。结果表明,PFOA对蚯蚓的急性毒性作用与染毒时间和染毒浓度相关,实验求得PFOA对蚯蚓毒性作用7和14d的LC50值分别为816.58和792.50mg·kg-1;蚯蚓在160mg·kg-1PFOA暴露浓度下表现出明显的回避反应。在10～120mg·kg-1PFOA长时间暴露下,蚯蚓体内SOD出现"低促高抑"的变化趋势,而GSH-Px则总体上被PFOA所抑制。
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| 关 键 词： | PFOA 蚯蚓 急性毒性 回避行为 抗氧化酶 |
| 收稿时间： | 2012/8/19 0:00:00 |
| 修稿时间： | 2012/9/21 0:00:00 |
Toxicity of Perfluorooctanoic Acid to Earthworms (Eisenia foetida) |
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| Xu Dongmei,Li Chandan and Wang Yanhua.Toxicity of Perfluorooctanoic Acid to Earthworms (Eisenia foetida)[J].Asian Journal of Ecotoxicology,2012,7(5):532-536. |
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| Authors: | Xu Dongmei Li Chandan and Wang Yanhua |
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| Institution: | College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China;Institute of Environmental Science, Zhejiang University, Hangzhou 310058, China;College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, China |
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| Abstract: | To investigate the soil ecotoxicity of perfluorinated compounds(PFCs),artificial soil test was adopted to study the effects of perfluorooctanoic acid(PFOA) on the acute lethality,avoidance behavior and the activities of antioxidant enzymes.The results showed that the acute toxicity of PFOA on earthworm was related to the exposure time and concentration of PFOA.The 7 d and 14 d of LC50 of PFOA on earthworm were 816.58 and 792.50 mg·kg-1,respectively.At the maximum test concentration of 160 mg·kg-1,the earthworm showed significant avoidance behavior.After a long period of exposure to 10～120 mg·kg-1 PFOA,the antioxidant enzymes in earthworms such as SOD exhibited allelopathic inhibition under high concentration and allelopathic stimulation under low concentrations.But the GSH-Px was inhibited by PFOA. |
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| Keywords: | PFOA earthworm acute toxicity avoidance behavior antioxidant enzymes |
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