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首页> 外文会议>Proceedings of 4th international symposium on pesticides and environmental safety amp; 5th pan Pacific confernce on pesticide science amp; 8th international workshop on crop protection chemistry and regulatory harmonization >Monitoring of Pesticides and Major Metabolites in River of Paddy Field Basin
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Monitoring of Pesticides and Major Metabolites in River of Paddy Field Basin

机译：稻田流域河流中农药和主要代谢产物的监测

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@@ In Japan, more than half of the arable land is paddy fields, and almost half of the total amount of pesticides used is applied to paddy fields. Paddy pesticides flow easily into rivers from paddy fields, which are directly connected to rivers via drainage canals. Paddy pesticides are detected in river water at higher frequencies and at higher concentrations than are pesticides applied to upland fields. Pesticide metabolites may also be detected in rivers because some pesticides can be easily degraded by hydrolysis, photolysis, or biodegradation in water and soil. Metabolites of some pesticides, such as organophosphorus insecticides, are more active against the target organisms than are the parent compounds, however, detailed monitoring studies of metabolites in rivers are limited. Therefore, for precise assessment of exposure to paddy pesticides in aquatic environments, both pesticides and their metabolites must be monitored.
机译：@@在日本，耕地的一半以上是稻田，几乎所有农药的一半都用于稻田。稻田农药很容易从稻田流入河流，而稻田通过排水渠直接与河流相连。与施用于旱田的农药相比，在河水中检测到稻田农药的频率更高，浓度更高。在河流中还可以检测到农药代谢物，因为某些农药在水和土壤中易被水解，光解或生物降解而降解。某些农药（例如有机磷杀虫剂）的代谢物对目标生物的活性比其母体化合物高，但是，对河流中代谢物的详细监测研究有限。因此，为了精确评估在水生环境中对稻田农药的接触，必须同时监测农药及其代谢产物。

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