摘要
目的了解烟台市居民主要膳食中镉含量及镉暴露风险。方法在烟台市随机采集10类925份食物样品并测定镉含量,结合居民膳食消费量数据,采用点评估方法计算每标准人月均镉暴露量和安全限值(MOS)并进行风险评估。结果 925份样品中仅1份扇贝样品镉含量超标。10类食物中镉含量均值为26.47μg/kg,其中鱼虾类最高为92.48μg/kg,其次为动物内脏、面类和蔬菜,镉含量均值分别为47.35、33.25和18.87μg/kg。米类、面类、禽畜肉和动物内脏的镉检出率为100.00%。居民每月主要食物镉暴露量总和(P95)为1 399.48μg,未超过每月允许摄入量,MOS值为1.07。市民膳食月镉暴露比例最高为面类食物76.09%,最低为蛋类食物0.04%。结论烟台市居民主要膳食镉暴露处于安全水平;面类食品是镉暴露危险食品,应加强对其镉污染控制,降低膳食风险。
Objective To analyze the cadmium level of main food,and to preliminarily assess the risk of dietary cadmium exposure among residents in Yantai. Methods A total of 925 samples of 10 kinds of food groups were collected from 14counties( or districts) of Yantai. Cadmium contents in food were determined according to GB / T 5009. 15—2003,and then the provisional tolerable monthly intake( PTMI) and the margins of safety( MOS) of cadmium were calculated by combining the concentration of cadmium in foods with food consumption data. Results The concentration of cadmium in 10 kinds of food groups was 26. 47 μg / kg. The concentration of cadmium in sea foods was 92. 48 μg / kg,and that was the highest among the 10 kinds of food groups. The concentration of cadmium in pluck,flour and vegetables were 47. 35,33. 25,18. 87 μg / kg respectively. Monthly dietary cadmium exposure quantity of flour, sea food, vegetable and rice was295. 70 μg,38. 11 μg,32. 09 μg and 10. 87 μg, respectively. Flour as a most important contributor, contributed76. 09% of the total dietary cadmium exposure. Conclusion The average dietary cadmium exposure from the main food did not exceed the PTMI and the MOS was more than 1,so the level of dietary cadmium exposure is safe. However,based on the largest consumption of flour in Yantai and the high contribution rate of flour of dietary cadmium exposure,more attention should be paid to the possible cadmium contaminated wheat.
出处
《预防医学》
2016年第7期662-665,共4页
CHINA PREVENTIVE MEDICINE JOURNAL
基金
烟台市科技局立项项目(2014WS051)
