我国南北典型省份农村饮用水中农药残留的现状调查
发布时间:2018-05-08 21:49
本文选题:农村 + 饮用水 ; 参考:《环境与健康杂志》2015年08期
【摘要】:目的了解我国南北典型地区农村饮用水中农药残留的现状与差异。方法于2014年的农药喷撒高峰期(4—8月),对北方A省和南方B省9个市(县、区)的农村饮用水中6种农药(毒死蜱、敌敌畏、乙草胺、丁草胺、莠去津、多菌灵)残留进行检测。结果毒死蜱、敌敌畏、乙草胺、丁草胺、莠去津和多菌灵在A省均有检出,检出率分别为98.2%(108/110),46.4%(51/110),95.5%(105/110),83.6%(92/110),20.9%(23/110),0.9%(1/110);B省仅检出乙草胺、莠去津和多菌灵,检出率分别为1.8%(1/57),3.5%(2/57),45.6%(26/57)。A省水样中毒死蜱、敌敌畏、乙草胺、丁草胺、莠去津的检出率远高于B省,而B省水样中多菌灵的检出率高于A省。水中农药的检出率总体上都随着施药点距离的增加而降低。这6种农药中,仅敌敌畏出现超标,且超标水样分布在A省的一县和一市,超标率分别为5.71%(2/35)和43.75%(14/32)。结论在施药期间,A省和B省某些农村饮用水中存在农药残留,且A省部分地区存在敌敌畏超标现象。
[Abstract]:Objective to understand the present situation and difference of pesticide residues in rural drinking water in north and south China. Methods six pesticides (chlorpyrifos, dichlorvos, Acetochlor, butachlor, atrazine, atrazine) in rural drinking water of 9 cities (counties, districts) in Northern A Province and Southern B Province were collected from April to August during the peak period of pesticide spraying in 2014. Carbendazim) residues were detected. 缁撴灉姣掓铚,
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