2013年遵义市部分县市食品中铅污染检测结果分析

Analysis of test Results of Lead Contamination in food part of Counties in Zunyi city in 2013

目的为了解2013年遵义市部分县市食品中铅污染的状况。方法对部分县市的主要的超市及农贸市场等按照随机原则采集婴幼儿食品、食用菌、茶叶、蔬菜四种类别的食品样品共174份进行重金属检测。结果各类食品均无超标,平均检出率为25.2%,各类食品中的检出率经卡方检验差异存在统计学意义。结论各类食品中铅的超标数为0,超标率为0.0%,说明铅污染水平总体是安全的,但各类食品中都有检出铅,说明存在不同程度的铅污染。

Objective In order to understand the lead pol ution in this area in the food situationin2013.Methods Inthe area of some counties of the major supermarkets and farmers market in accordance with the principle of random sampling of infant food,edible fungus,tea,vegetables,four categories of food samples,174 samples of heavy metal detection. Result Various types of food are not exceed the standard,the average positive rate was 25.2%,al kinds of food in the detection rate by chi square test of significant difference.Conclusion Exceed the standard number of al kinds of food for lead were 0,exceed the standard rate of 0.0%,the lead pol ution level overal is safe,but al kinds of food are detectable lead, indicating the presence of lead pol ution of different degrees.