宁波市江北区市售蔬菜中铅、镉、汞检测结果分析

Analysis on concentration of lead,cadmium,and mercury in vegetables sold in Jiangbei district,Ningbo

目的:了解宁波市江北区市售蔬菜中铅、镉、汞污染情况,为减少中毒和制定预防措施提供依据。方法:随机采集江北区3个农贸市场销售的蔬菜样本,共8个品种72份,用微波消解仪进行消化处理,按照GB/T5009进行分析;用圆白菜标准样品(GBW10014)进行质量控制。结果:72份蔬菜中铅、镉、汞检出率分别为100%、100%、16.7%。其中铅含量较高的为生菜和空心菜,镉含量较高的为食用菌和生菜,汞含量均较低。结论:宁波市江北区市售蔬菜存在铅、镉、汞的轻度污染。

Objective：To learn the contamination of lead,cadmium,and mercury in vegetables sold in Ningbo Jiangbei district and to provide bases for establishment of preventive measures.Methods： 72 vegetable samples of 8 varieties were randomly collected from 3 markets in Jiangbei district.Samples were then prepared by microwave digestion,and analyzed according to GB/T5009.Cabbage standard（GBW10014）was applied for quality control.Results： The detectable rates of lead,cadmium,mercury were 100%,100% and 16.7%,respectively.Comparatively higher concentration of lead were detected in lettuce and water spinach,while edible fungi and lettuce were found contaminated by cadmium.Concentration of mercury detected was comparatively low.Conclusion： There exist mild contamination of lead,cadmium,and mercury in vegetables sold in Ningbo Jiangbei district.