2006-2009年宁德市茶叶5种农药残留检测分析

Detection and analysis of five pesticide residues of tea in Ningde City from 2006 to 2009

对福建省宁德市2006-2009年1738份茶叶样品,采用气相色谱仪检测三氯杀螨醇、氰戊菊酯、氯氰菊酯、甲氰菊酯、滴滴涕等农药残留含量,获取相应的检测数据,以国内制定的农药最大残留量为指标进行分析评估,结果表明,2006-2009年该市茶叶中农药残留检出超标率呈逐年下降的趋势,但是滴滴涕等农药仍有较高检出率,说明菊酯类农药较普遍使用应引起监管部门足够的重视,以防止该类农药的泛滥使用,并就此提出相应的农药残留控制措施。

Determination of pesticide residue for 1738 samples of tea was conducted from 2006 to 2009 by gas chromatography.Maximum residue limits for pesticides were evaluated based on the Dicofol,fenvalerate,fenpropathrin and DDT（dichloro-diphenyl-trichloroethane）.The results showed that rate of exceeding standard of pesticide residue for tea was declined year by year in Ningde City,however,index of DDT shared higher detectable rate.The supervision department of local government should be paying more attention to controlling the abusive usage of pyrethroid pesticide and figuring out the effective measures.