大连市2011-2015年市售食品中重金属污染状况  

Contamination status of heavy metals in retailed food in Dalian City,2011-2015

作　　者：张磊[1] 董倩倩[1] 郑晓南[1] 宋晓昀[1] 李瑞[1] 

机构地区：[1]大连市疾病预防控制中心,辽宁大连116021

出　　处：《实用预防医学》2017年第7期780-783,共4页Practical Preventive Medicine

摘　　要：目的了解大连市售食品中重金属污染状况。方法采取分层随机抽样方法,2011-2015年在全市10个行政区域内的农贸市场、超市等监测点,采集7大类2 102份食品样品,采用石墨炉原子吸收光谱法和原子荧光光谱法分别对样品中的铅、镉、总汞以及总砷进行检测。结果 7类市售食品中铅、镉、总汞、总砷的总检出率与总超标率分别为37.5%和4.6%,47.8%和1.7%,35.7%和1.8%,29.3%和3.2%。水产动物及其制品中铅、镉、总汞以及总砷的检出率和平均含量高于其他类别,分别为43.6%与0.239 mg/kg、59.6%与0.107 mg/kg、47.2%与0.063 mg/kg、44.2%与0.253 mg/kg。乳及乳制品中铅与总汞的超标率分别为9.2%和5.1%,水产动物及其制品中总砷的超标率为7.1%,蔬菜及其制品中镉的超标率为2.7%,高于同检测组其他的类别。结论大连市售食品中存在不同程度重金属污染,其中水产动物及其制品与乳及乳制品中重金属污染状况较严重,需政府进一步加强监管。Objective To investigate the contamination status of heavy metals in retailed food products in Dalian City. Meth- ods Stratified random sampling method was used to collect 2,102 food samples of 7 categories from farmer markets, supermarkets and other monitoring sites in 10 administrative districts of Dalian City during 2011-2015. Graphite furnaceatomic absorption spec- trometry and atomic fluorescence spectrometry were employed for determining the contents of lead, cadmium, total mercury and to- tal arsenic in the samples. Results The total detection rates and the exceeding standard rates of lead, cadmium, total mercury and total arsenic in 7 categories of food samples were 37.5% and 4.6%, 47.8% and 1.7%, 35.7% and 1.8%, 29.3% and 3.2% respectively. The detection rates and the average contents of lead （43.6%, 0.239mg/kg） , cadmium （59.6%, 0.107mg/kg） , total mercury （47.2%, 0.063mg/kg） and total arsenic （44.2%, 0.253mg/kg） in aquatic animals and their products were higher than those in the food samples of other categories. The exceeding standard rates of lead and total mercury in dairy products were 9.2% and 5.1% respectively, the exceeding standard rate of total arsenic in aquatic animals and their products and that of cadmium in vegetables were 7.1% and 2.7% respectively, which were both higher than those in the other food categories. Conclusions The retailed food is subjected to different levels of heavy metal pollution in Dalian City, 2011-2015. The pollution in aquatic animals and their products and dairy products in Dalian City,2011-2015 is relatively serious. The government needs to further strengthen the supervision.

关 键 词：重金属 市售食品 水产动物及其制品 乳制品 

分 类 号：R155.33[医药卫生—营养与食品卫生学]