芜湖市部分市售蔬菜重金属含量及其健康风险研究  

Concentration and Health Risk of Heavy Metals in Vegetables from the Markets of Wuhu City

作　　者：王波[1] 刘晓青[1] 冯昌伟[1] 

机构地区：[1]安徽师范大学环境科学与工程学院,安徽芜湖241000

出　　处：《中国农学通报》2011年第31期143-146,共4页Chinese Agricultural Science Bulletin

基　　金：安徽省高校省级科学研究项目"两淮矿区重金属污染现状及修复植物与优化条件筛选"(KJ2010A150);高等学校省级教学质量与教学改革工程项目"<环境评价>教学内容整合与教学方法改革研究"(20100245);安徽师范大学专项基金"油菜对镉污染的生理响应及耐性机制研究"(2007xzx15)

摘　　要：选取芜湖市大型超市及批发市场中有代表性的三大类49个蔬菜样本为监测对象,分析食用部分重金属含量,参照国家食品卫生标准和蔬菜质量分级标准评价重金属污染状况,通过暴露风险分析评价食用市售蔬菜引起的人体健康风险。结果表明,三类蔬菜食用部位的重金属含量由高到低表现为叶菜类>果菜类>根茎类;鸡毛菜、菠菜、生菜的锌含量分别为20.31、30.83、23.40mg/kg,超出了食品中锌含量的限量值,鸡毛菜铅含量为0.342mg/kg,超出了铅含量的限量值,菠菜和生菜镉含量分别为0.219mg/kg和0.203mg/kg,超出了镉含量的限量值;鸡毛菜、菠菜、生菜与黄瓜已受到重金属轻度污染,茄子和辣椒重金属污染已在警戒线上,胡萝卜、白萝卜与马铃薯属于安全等级。市售蔬菜的重金属暴露风险指数(HQ蔬菜)小于1,食用市售蔬菜不会引起居民的健康风险。In order to evaluate pollution degree of the heavy metal in vegetables and to assess health risks through vegetables for the general population,the study was undertaken as a preliminary survey of Cu,Zn,Pb and Cd concentrations in 49 vegetables samples of 3 kinds from a large supermarket and vegetables wholesale market in Wuhu City.The results showed that heavy metal concentrations among 3 kinds of vegetables in edible parts decreased in following order：leafy vegetables fruit vegetablesrhizome vegetables;Zinc contents in edible parts of Chinese little greens,spinach and lettuce,beyond the limit of Zinc content in food,were 20.31 mg/kg,30.83 mg/kg and 23.40 mg/kg,respectively;Lead content in edible parts of Chinese little greens was 0.342 mg/kg,beyond the limit of Lead content in food;Cadmium content in edible parts of spinach and lettuce were 0.219 mg/kg and 0.203 mg/kg,respectively,beyond the limit of Cadmium content in food;Chinese little greens,spinach,lettuce and cucumbers had been slightly contaminated by heavy metals;eggplant and pepper were in warning line;carrot,white radish and potatoes were safe.Exposed risk index was less than 1,so consumption of vegetables from market would not cause health risk.

关 键 词：蔬菜 重金属 污染 健康风险 芜湖市 

分 类 号：X820.4[环境科学与工程—环境工程]