宁波海曙区24类常见蔬菜中重金属铅污染状况与评价  

Pollution status and assessment of lead in 24 kinds of common vegetables in Haishu District of Ningbo City

作　　者：杨双喜 王海滨[1] 汪娌娜[1] 张朝阳[1] 俞幸幸 洪丽虹 YANG Shuang-xi;WANG Hai-bin;WANG Li-na;ZHANG Chao-yang;YU Xing-xing;HONG Li-hong(Haishu District Center for Disease Control and Prevention,Ningbo,Zhejiang 315000,China)

机构地区：[1]宁波市海曙区疾病预防控制中心,浙江宁波315000

出　　处：《中国卫生检验杂志》2022年第7期862-865,共4页Chinese Journal of Health Laboratory Technology

基　　金：海曙区科技计划项目(海科[2018]40号);海曙区第二批医学重点学科(卫生检验学)。

摘　　要：目的了解宁波市海曙区本地种植常见种类蔬菜重金属铅(Pb)污染状况,并评估其污染程度。方法采集宁波市海曙区本地种植常见种类蔬菜,运用电感耦合等离子体质谱法(ICP-MS)测定其Pb的含量,同时进行卫生质量和污染程度评价。结果共采集海曙区本地种植主要种类蔬菜24类885份,Pb检出率为25.20%;检出率最高的为韭菜,为64.86%;检出率超过50%的蔬菜还有大蒜、菠菜、小白菜。蔬菜中Pb平均含量为0.026 mg/kg,超标率为2.71%,主要以根茎类蔬菜超标为主;蔬菜中Pb的总单因子污染指数为0.18,24类蔬菜中Pb的单因子污染指数为0.04~0.41,均<0.7,所有种类蔬菜重金属污染程度评价为优良等级。结论宁波市海曙区本地种植常见蔬菜中重金属Pb含量污染程度评价为优良等级,但存在个别样本重金属含量超标现象。Objective To investigate the lead(Pb)contamination status in the common vegetables in Haishu District of Ningbo City and to evaluate the health risk of them.Methods Common vegetable samples planted in Haishu District of Ningbo City were collected and then the concentration of Pb was analyzed by using an inductively coupled plasma mass spectrometry(ICP-MS),and finally the hygienic quality and the pollution degree were assessed.Results A total of 885 pieces of 24 kinds of local vegetables were collected,and the detection rate of Pb was 25.20%;leek had the highest detection rate,accounting for64.86%;the detection rate of garlic,spinach,and pakchoi were all over 50%.The average concentration of Pb was0.026 mg/kg,with the exceeding standard rate of 2.71%,predominated with root vegetables.The total single factor pollution index of Pb in the vegetables was 0.18 and the single factor pollution index of Pb in 24 kinds of vegetables was 0.04-0.41,which were all less than 0.7,and the pollution degree of all kinds of vegetables was evaluated as good.Conclusion The pollution of Pb in the local common vegetables in Haishu District of Ningbo City was good,but the pollution of Pb in some samples exceeded the standard.

关 键 词：蔬菜 重金属 铅 评价 

分 类 号：R155.33[医药卫生—营养与食品卫生学]