【作者】 苏丽敏； 刘惠清； 李志群； 田竹君； 赵峰； 朱晓琳；

【Author】 SU Li-min,LIU Hui-qing,Li Zhi-qun,TIAN Zhu-jun,Zhao Feng,Zhu Xiao-lin 1.College of Urban and Environmental Sciences,Northeast Normal University, Changchun 130024,China 2.Institute of Water Environmental Science,Water Resource Protection Bureau of Songliao Water Basin,Changchun 130024,China

【机构】 东北师范大学城市与环境科学学院； 松辽流域水资源保护局松辽水环境科学研究所；

【摘要】 研究了呋喃丹、氯氰菊酯、溴氰菊酯3种农药与重金属Cu、Zn、Cd以毒性单位比为1:1、1:3和3:1构成的二元混合体系对发光菌(Photobacterium phosphoreum)的联合毒性,采用相加指数法(AI)对联合毒性效应进行评价,结果表明:Cu与3种有机农药作用后主要表现为拮抗作用,呋喃丹毒性减弱最多,氯氰菊酯次之,溴氰菊酯则有增强的趋势;Zn与各有机农药作用后主要表现为拮抗作用,不同浓度配比对3种农药的影响不同;Cd与各有机农药作用后主要表现为相加作用,但不同混合体系相加作用程度有差异,Cd与氯氰菊酯表现为偏于拮抗的相加作用,Cd与溴氰菊酯表现为明显的相加作用,Cd与呋喃丹表现为偏于协同的相加作用。更多还原

【Abstract】 Joint toxicities of binary mixtures of 3 pesticides and heavy metals Cu,Zn,Cd on Photobacterium phosphoreum at different proportions—toxic unit ratios of 1:1,1:3,3:1—were studied. Additional index(AI) was adopted to evaluate the joint toxic effects.It was found that binary mixtures of Cu and 3 pesticides mainly show antagonistic effects,the toxicity of carbofuran is weakened most, then cypermethrin,however toxicity of deltamethrin is a little enhanced when combined with Cu. Binary mixtures of Zn and 3 pesticides mainly show antagonistic effects and different effects were found at different Zn proportions.Binary mixtures of Cd and 3 pesticides mainly show addition effects, the mixtures of Cd and Cypermethrin showed addition effects close to antagonistic,the mixtures of Cd and deltamethrin showed clearly addition effects,however the effects of Cd and carbofuran is close to weak synergism.更多还原