Synergistic sub-lethal effects of a biocide mixture on the springtail Folsomia fimetaria.
Synergistic sub-lethal effects of a biocide mixture on the springtail Folsomia fimetaria.
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DOI：
10.1016/j.envpol.2013.12.004
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发表时间：
2014-03
影响因子：
8.9
通讯作者：
Lisbeth Schnug;H. P. Leinaas;J. Jensen
中科院分区：
文献类型：
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作者：
Lisbeth Schnug;H. P. Leinaas;J. Jensen
采用单剂和混合剂试验，研究了艾氰菊酯、吡虫酯和三氯生3种杀菌剂对春尾狐尾虫成虫生存和幼虫招募的毒性。幼鱼的招募对杀虫剂暴露比成虫的生存更敏感。浓度添加和独立作用的概念返回了几乎相同的毒性预测，尽管由于高暴露浓度下的协同偏差，这两个模型都未能预测观察到的毒性。与对蚯蚓的类似研究的比较表明，反应模式是物种特异性的。因此，没有一个单一的参考概念适用于一个生态系统的所有物种，这反过来又质疑这种混合预测概念在生态风险评估中的有用性。
The toxicity of three biocides, esfenvalerate, picoxystrobin and triclosan, on adult survival and recruitment of juveniles was studied in the springtailFolsomia fimetaria, both in single and mixture experiments. Recruitment of juveniles was more sensitive to biocide exposure than adult survival. The concepts of concentration addition and independent action returned almost identical toxicity predictions, though both models failed to predict the observed toxicity due to synergistic deviations at high exposure concentrations. A comparison with a similar study on earthworms showed that response-patterns were species-specific. Consequently, there is no single reference concept which is applicable for all species of one ecosystem, which in turn questions the usefulness of such mixture prediction concepts in ecological risk assessment.