冬寒菜铅含量超标现象探讨

Investigation of Pb Content Exceeded in Chinese Mallow

泸州农业质量检测中心在农产品质量安全抽检中发现所检冬寒菜样品铅含量均不符合国家标准GB2762—2005《食品中污染物限量》的要求,遂从采样点距公路远近、样品预处理方式、不同种类蔬菜的状况等方面进行探讨。主要结论:冬寒菜铅含量普遍超标可能是由于植株表面结构特殊而导致含铅物质机械附着,铅可以通过清洗去除,不对人体健康构成影响;目前农产品质量安全指标检测标准应规范蔬菜类样品预处理方式。

The Pb content of Chinese mallow have the problem of non-standardization to GB 2762-2005 in the test. The report introduced the phenomenon of Pb content exceeded in Chinese mallow in terms of the distance between the sampling sites and the road,pretreatment methods and other kinds of vegetable. The result indicated that Pb content exceeded in Chinese mallow was caused by the unique surface structure of the plant, it could be solved by washing before consumption.