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Environmental risk assessment of biocidal products: identification of relevant components and reliability of a component-based mixture assessment

机译:杀菌产品的环境风险评估:相关成分的识别和基于成分的混合物评估的可靠性

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摘要

BackgroundBiocidal products are mixtures of one or more active substances (a.s.) and a broad range of formulation additives. There is regulatory guidance currently under development that will specify how the combined effects of the a.s. and any relevant formulation additives shall be considered in the environmental risk assessment of biocidal products. The default option is a component-based approach (CBA) by which the toxicity of the product is predicted from the toxicity of ‘relevant’ components using concentration addition. Hence, unequivocal and practicable criteria are required for identifying the ‘relevant’ components to ensure protectiveness of the CBA, while avoiding unnecessary workload resulting from including by default components that do not significantly contribute to the product toxicity. The present study evaluated a set of different criteria for identifying ‘relevant’ components using confidential information on the composition of 21 wood preservative products. Theoretical approaches were complemented by experimentally testing the aquatic toxicity of seven selected products.
机译:背景杀生物产品是一种或多种活性物质(a.s.)与各种配方添加剂的混合物。目前正在制定监管指南,该指南将规定a.s.的综合影响。在杀生物产品的环境风险评估中应考虑任何相关的配方添加剂。默认选项是基于成分的方法(CBA),通过这种方法,可以通过使用浓度添加从“相关”成分的毒性中预测产品的毒性。因此,需要明确,可行的标准来识别“相关”成分,以确保CBA的保护性,同时避免因默认情况下包括不会显着影响产品毒性的成分而导致不必要的工作量。本研究评估了一套有关使用21种木材防腐产品成分的机密信息来识别“相关”成分的不同标准。通过对7种选定产品的水生毒性进行实验测试来补充理论方法。

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