闽北山区茶叶中农药残留状况及评价

Study on the Level of Pesticide Residue in Tea in the Northern Fujian, China

[目的 ]调查分析南平市茶叶主产区的农药使用状况及茶叶中的农药残留水平。[方法 ]调查各产茶区的农药使用情况 ;运用气相色谱仪 ,按国标方法 ,测定随机抽取的 164份样品的农药残留量。[结果 ]茶叶中检出的农药残留品种有 :有机氯类 (六六六、DDT、艾氏剂、三氯杀螨醇 )、有机磷类 (敌敌畏、乐果、氧化乐果 )、拟除虫菊酯类 (联苯菊酯、功夫菊酯、氯氰菊酯、氰戊菊酯、甲氰菊酯、二氯苯醚菊酯 )。残留量超出国标的品种有六六六 ;超出欧盟标准的有联苯菊酯、功夫菊酯、氯氰菊酯和氰戊菊酯。有机磷类农药残留水平均在国标之内。 [结论 ]南平市茶叶中农药残留整体偏低。但产茶区间呈现不平衡 ,个别茶叶品种农药残留水平相对较高些 ,政和、松溪。

To investigate and analyze the level of pesticide residue in tea producing areas in Nanping city \ 164 random samples were detected by chromatography according to GB standard \ The kinds of pesticide residues detected were as follows: organo chlorine (HCH, DDT, HHDN and kelthane), organo phosphorus (dichlorphos, rogor and folimat) and pyrethroid (bifenthrin, lambda cyhalothrin, cypermethrin, fenvalerate, fenpropathrin and permethrin) The residual level of HCH exceeds GB Standard;And bifenthrin, lambda cyhalothrin, cypermethrin and fenvalerate exceed EEC (European Economic Community) Standard The level of organo phosphorus was below GB Standard \ The pesticide residues in tea are at lower level in Nanping city But the levels vary with different tea producing areas The levels are comparatively higher in Wuyi Mountain and Jianou and lower in Zhenghe, Songxi, Pucheng and Jianyuan