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首页> 外文期刊>Journal of pesticide science >Pesticide behavior in modified water-sediment systems
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Pesticide behavior in modified water-sediment systems

机译：改良水沉降系统中的农药行为

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The standardized laboratory water-sediment study in darkness is utilized as primary information on pesticide behavior to assess its ecotoxicological impacts in the edge-of-field water bodies. The half-lives of pesticide in water and sediment are key parameters to predict its environmental concentration, and its metabolic profiles help to avoid overlooking unexpected toxicological impacts from metabolites. However, no consideration of environmental factors such as sunlight and aquatic macrophytes is included, and this may lead to a conservative assessment. We review the experimental factors in the existing standardized design and then the effects of illumination and aquatic macrophytes introduced to the water-sediment system. The effects of temperature and the water-sediment ratio should be investigated in more detail and the pesticide behavior is possibly modified by illumination via phbtodegradation and/or metabolism in phototrophic microorganisms. Aquatic macrophytes play a major role as an additional sorption site and in further pesticide metabolism. (C) Pesticide Science Society of Japan
机译：在黑暗中进行标准化实验室水沉淀研究，将其用作农药行为的主要信息，以评估其对田间水体的生态毒理影响。农药在水和沉积物中的半衰期是预测其环境浓度的关键参数，其代谢特性有助于避免忽略代谢物的意外毒理学影响。但是，没有考虑到环境因素，例如阳光和水生植物，这可能导致保守的评估。我们回顾了现有标准化设计中的实验因素，然后介绍了照明和水生植物引入水沉淀系统的影响。温度和水沉比的影响应进行更详细的研究，农药的行为可能通过光养微生物中的细菌降解和/或新陈代谢的照射而改变。水生植物在额外的吸附位点和农药的新陈代谢中起主要作用。 （C）日本农药学会

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