农药产品中相关杂质限量

Limits of Relevant Impurities in Pesticide

农药的相关杂质一般是指在农药生产或贮存过程中所含有对人类和环境具有明显毒害,或对适用作物产生药害,或引起农产品污染,或影响农药产品质量稳定性,或引起其他不良影响的杂质(包括异构体的比例和水等)。相关杂质既是农药产品质量的重要控制项目,也是农药安全性评价的重要内容,它已成为国际组织和发达国家农药管理重点。近年来农药相关杂质的数量在逐渐增加,限量要求也变得更加严格。收集整理了联合国粮农组织FAO(共129个,其中杀虫剂45个、杀菌剂29个、除草剂和植物生长调节剂55个)、世界卫生组织WHO(35个)和欧盟EU(11个)发布的农药相关杂质名称及限量情况,共涉及农药品种176个,为提高中国农药产品质量,完善农药相关杂质限量管理提供参考依据。

Relevant impurities should be defined as those by-products of the manufacture or storage of pesticide, which are more toxic than the pure active ingredient or raise other toxicological concerns, cause phytotoxicity, taint food commodities, affect the physical properties of formulations, or result in significant residues in food or the environment. The relevant impurities should be named and their maximum permissible concentration should be specified in the pesticides specifications and registration documents. It＇s a worldwide important topic to regularly control relevant impurities during the manufacturing and formulating processes as well as during storage and handling of marketed products. This paper introduces limits of relevant impurities of pesticide provided by Food and Agriculture Organization （FAO）, World Health Organization （WHO）, and European Union （EU）, aims at improving the qualities and safety assessment of pesticide by focusing on the nature and effects of certain impurities in China.