烟台市农村饮用水水源地农药残留监测分析

发布时间：2018-05-17 00:01

本文选题：农村水源地 + 种农药　；参考：《现代预防医学》2015年09期

【摘要】：目的了解烟台市农村饮用水水源地农药污染状况,为烟台市农村水质调查提供基础数据。方法于2012年7月-2013年6月,在烟台市12个县市区所有的55个主要水源地采集水样,采样分枯水期、丰水期两期进行。萃取后用Agilent 7890-7000A检测。共计检测105种农药。结果共得到55个平行水样结果,55个水源地均可检出农药残留,水样检出农药种类在18~34种之间,总含量在103.0 ng/L到345.7 ng/L。有机磷农药、拟除虫菊酯类农药在各个水源地中均可检出。各水源地农药残留含量由高到低依次为:有机磷农药拟除虫菊酯类有机氯氨基甲酸酯类二羧甲酰亚胺唑类。丰水期农药总含量、有机磷类、氨基甲酸酯类农药含量高于枯水期含量,差别有统计学意义(t值分别为9.674,5.577,4.320,P值均小于0.01)。结论烟台市农村水体均受到不同种类农药的污染,不合理用药是造成污染的主要原因。
[Abstract]:Objective to investigate the pesticide pollution in drinking water source of Yantai city and to provide basic data for the investigation of water quality in rural area of Yantai city. Methods from July 2012 to June 2013, water samples were collected from 55 main water sources in 12 counties and cities of Yantai. After extraction, Agilent 7890-7000A was used for detection. A total of 105 pesticides were detected. Results A total of 55 parallel water samples were obtained, and pesticide residues were detected in 55 water sources. The total contents of pesticides in water samples ranged from 103.0 ng/L to 345.7 ng 路L ~ (-1). Organophosphorus pesticides, pyrethroid pesticides can be detected in various water sources. The order of pesticide residue content in each water source is: pyrethroid organophosphorus pesticide pyrethroid organic chlorocarbamate dicarboxyformimide. The total contents of pesticides, organophosphorus and carbamate in high water season were higher than those in dry season, and the difference was significant (P < 0.01). Conclusion the water bodies in rural areas of Yantai are polluted by different kinds of pesticides, and irrational use of drugs is the main cause of pollution.
【作者单位】：烟台市疾病预防控制中心;
【分类号】：R123.9

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