Toxicity of mixtures of lambda-cyhalothrin, imidacloprid and cadmium on the earthworm Eisenia fetida by combination index (CI)-isobologram method
文献类型: 外文期刊
作者: Wang, Yanhua;Zhao, Xueping;Wang, Qiang;Chen, Chen;Qian, Yongzhong;Kong, Xiangzhen
作者机构:
关键词: lambda-cyhalothrin;Imidacloprid;Cadmium;Eisenia fetida;Acute mixture toxicity;Combination index
期刊名称: ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
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年卷期:
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收录情况: SCI
摘要: Contaminants in the environment do not appear singly and usually occur as mixtures. We applied the combination index (CI)-isobologram method which allows computerized quantitation of synergism, additive effect and antagonism to determine the nature of toxicological interactions of two pesticides lambda-cyhalothrin, imidacloprid, and heavy metal cadmium towards earthworm Eisenia fetida. In an artificial soil test, lambda-cyhalothrin and Cd combination was slightly synergistic at low effect levels which turned into a slight antagonism above f(a) values of 0.6, while the binary mixtures containing imidacloprid exhibited antagonism. The presence of imidacloprid in the ternary mixture also resulted in an antagonistic effect to the earthworms. This behavior became more antagonistic in the ternary mixture in filter paper tests. (C) 2014 Elsevier Inc. All rights reserved.
分类号: X`R12`R99
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