| 丁虫腈稻田使用后对水生生物安全性初探 |
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| 引用本文： | 何健,孔德洋,吴文铸,单正军. 丁虫腈稻田使用后对水生生物安全性初探[J]. 环境科学与技术, 2013, 0(6): 168-171 |
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| 作者姓名： | 何健 孔德洋 吴文铸 单正军 |
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| 作者单位： | 环保部南京环境科学研究所;南京农业大学资源与环境科学学院 |
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| 摘 要： | 通过建立稻田-鱼塘模拟生态系统,研究丁虫腈在稻田-鱼塘模拟生态系统中的迁移、转化规律,及其对鱼、虾、蟹水生生物的影响。结果表明,农药丁虫腈乳油施入稻田初期,74.8%被水稻植株沾附,17.3%进入稻田水,稻田水中丁虫腈最高浓度达0.034 mg/L。施药24 h后,将稻田水排入邻近鱼塘,鱼塘水体中丁虫腈最高浓度达0.001 8 mg/L。丁虫腈在稻田水和鱼塘水中降解半衰期分别为5.0 d、8.9 d,丁虫腈在水稻土中很难降解。试验同时表明水生生物虾对丁虫腈较为敏感,对鲫鱼和蟹影响较小。因此丁虫腈稻田施用时,应注意其对虾的安全性影响。
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| 关 键 词： | 模拟生态系统 丁虫腈 水生生物 |
Tentative Safety Assessment of Flufiprole:Its Impacts on Aquatic Organisms after Applied to Paddy Fields |
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| HE Jian,KONG De-yang,WU Wen-zhu,SHAN Zheng-jun. Tentative Safety Assessment of Flufiprole:Its Impacts on Aquatic Organisms after Applied to Paddy Fields[J]. Environmental Science and Technology, 2013, 0(6): 168-171 |
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| Authors: | HE Jian KONG De-yang WU Wen-zhu SHAN Zheng-jun |
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| Affiliation: | 1(1.Nanjing Institute of Environmental Sciences,MEP,Nanjing 210042,China; 2.College of Resource and Environmental Science,Nanjing Agricultural University,Nanjing 210095,China) |
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| Abstract: | A simulated eco-system of a paddy field and fish-pond was set up to study the environmental behavior of flufiprole,focusing its impacts on fish,crabs and shrimps.Results of the study showed that 74.8% of flufiprole was adhered to rice plant and 17.3% of it went into water following its application to paddy field of the eco-system and into the fish-pond after 24 h.Flufiprole concentrations were determined in the paddy field and fish-pond and its half-lives estimated respectively.It has been showed that compared with fish and crabs shrimps were more sensitive to flufiprole,so cares should be taken when rearing shrimps in paddy fields. |
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| Keywords: | simulated eco-system flufiprole aquatic organisms |
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