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首页> 外文会议>Symposium of the British Crop Protection Council >Estimation of standardized transformation rates of a pesticide and its four soil metabolites from field dissipation studies for use in environmental fate modelling
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Estimation of standardized transformation rates of a pesticide and its four soil metabolites from field dissipation studies for use in environmental fate modelling

机译：从环境耗散研究中估算农药标准化转化率及其四种土壤代谢物，在环境命运中使用

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In this study, first-order transformation rates of a pesticide and its four main soil metabolites were estimated from results of seven field dissipation studies using the ModelMaker 4.0 software. A standardization procedure was incorporated in the models to calculate degradation rates at reference conditions defined in FOCUS, i.e. soil temperature of 20°C and soil moisture at pF2. The corrections were imple-mented using the same equations as in the FOCUS groundwater models, i.e. the Arrhenius and Walker equations for temperature and moisture, respectively, and the actual daily temperature and soil moisture values measured in the field studies. The resulting transformation rates were evaluated statistically. Estimates of the average field dissipation behavior of the parent compound and its metabolites were provided. The average standardized half-life of the parent was used to successfully predict disappearence in three independent field trials. The main advantages of the standardization method are1/ it accounts for seasonal climatic variability, and therefore provides an accurate description of the field data, and 21 the standardized parameters are applicable in a broad range of climate conditions.
机译：在这项研究中，使用ModelMaker 4.0软件的七种现场耗散研究的结果估计了农药的一阶转化率及其四个主要土壤代谢物。在模型中掺入标准化程序，以计算聚焦中定义的参考条件的降解速率，即PF2的土壤温度为20℃和土壤水分。使用与焦点地下水模型中的相同等式相同的等式，即温度和水分的步行方程，以及在现场研究中测量的实际日常温度和土壤湿度值的校正。得到的转化率在统计上进行评估。提供了母体化合物及其代谢物的平均场耗散行为的估计。父母的平均标准化半衰期用于成功预测三项独立实地试验中的消失。标准化方法的主要优点是1 / IT占季节性气候变异性，因此提供了对现场数据的准确描述，并且21标准化参数适用于广泛的气候条件。

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