首页|2种有机杀虫剂对中华绒螯蟹毒性研究

2种有机杀虫剂对中华绒螯蟹毒性研究

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针对我国地表水农药水质基准研究基本处于空白的现状,以半静态急性毒性测定方法研究两种杀虫剂(毒死蜱、硫丹)对中华绒螯蟹扣蟹急性毒性,旨为开展本土水生生物和有机磷农药品种筛选研究提供理论和科学数据支持,为下一步开展毒性评价终点的深入研究和完成重点有机磷农药品种水生态基准的制定工作提供参考.利用TSK方法得到毒死蜱和硫丹对中华绒螯蟹扣蟹24 h和48h的LC50值和95%的置信区间以及根据Reed-Muench法计算安全浓度:毒死蜱对扣蟹的24 h、48h的LC50值及置信区间分别为0.7 mg/L,(0.51~0.95)mg/L、0.34 mg/L,(0.26~0.44)mg/L,安全浓度为0.0241 mg/L;硫丹对扣蟹的24h、48h的LC50值及置信区间分别为1.66 mg/L,(1.14~2.43)mg/L、o.9 mg/L,(0.58~1.41) mg/L,安全浓度为0.079 4mg/L.对照大型甲壳类急性毒性实验的毒性分级标准,毒死蜱和硫丹对中华绒螯蟹属于剧毒物质.
Toxic Effects of Two Organic Pesticides on Eriocheir sinensis
In view of the deficiency in the criteria of surface water quality regarding pesticides toxicity in China,.two organic pesticides (chlorpyrifos and endosulfan)were selected to evaluate their toxic effects on Chinese mitten-handed crab (Eriocheir sinensis) by means of semi-static acute toxicity determination.In this study,TSK method was used to estimate 24 h and 48 h LC50 values with the related confidence interval of 95% of chlorpyrifos and endosulfan respectively to Eriocheir sinensis; and the Reed-Muench method was used to calculate the safe concentrations of chlorpyrifos (0.024 1 mg/L),and endosulfan (0.079 4 mg/L).In comparison with the criteria of acute toxicity classification for large crustaceans in the acute toxicity test,the study concluded that conchlorpyrifos and endosulfan were extremely toxic as far as to Eriocheir sinensis.

chlorpyrifosendosulfanacute toxicityChinese mitten-handed crab

陈尚朝、陈敏东、宋玉芝、周军英、单正军

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南京信息工程大学环境科学与工程学院/江苏省大气环境监测与污染控制高技术重点实验室,江苏南京210044

环保部南京环境科学研究所,江苏南京210042

毒死蜱 硫丹 急性毒性 中华绒螯蟹扣蟹

环保公益性行业科研专项

201009033

2014

环境科学与技术
湖北省环境科学研究院

环境科学与技术

CSTPCDCSCD北大核心
影响因子:0.943
ISSN:1003-6504
年,卷(期):2014.37(9)
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