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目的了解2011年南阳市食品中重金属铅、镉、汞的污染状况。方法在全市主要农贸市场和超市随机采集(购买)127份,共11类食品进行铅、镉、汞检测。结果 11类食品分别受到不同重金属污染,其中铅、镉污染最普遍,检出率分别为88.2%和80.3%。铅超标率最高的食品为水果47.6%。淡水鱼中受汞污染最普遍,检出率为87.5%,平均值为0.072 mg/kg。结论南阳市食品中重金属污染水平较高,需采取措施加强检测,查找污染源头。
Objective To understand the pollution of heavy metals Pb, Cd and Hg in food in Nanyang City in 2011. Methods A total of 127 samples were randomly collected from the main markets and supermarkets in the city to determine the contents of lead, cadmium and mercury in 11 kinds of foodstuffs. Results Eleven kinds of foodstuffs were contaminated by different heavy metals respectively. Among them, lead and cadmium were most commonly contaminated, the detection rates were 88.2% and 80.3% respectively. The lead with the highest standard of over 47.6% of fruits. Freshwater fish are most commonly contaminated with mercury, with a detection rate of 87.5% and an average of 0.072 mg / kg. Conclusion The level of heavy metal pollution in food is high in Nanyang City. Measures should be taken to strengthen the detection and find the sources of pollution.