2000年中国总膳食研究——不同性别年龄组人群膳食镉摄入量  

Chinese total diet study in 2000 Cadium intakes by different age-sex population groups

作　　者：张磊[1] 高俊全[1] 李筱薇[1] 

机构地区：[1]中国疾病预防控制中心营养与食品安全所,北京100050

出　　处：《卫生研究》2008年第3期338-342,共5页Journal of Hygiene Research

基　　金：1999年科学技术部科技基础性工作项目基金

摘　　要：目的评估中国不同性别年龄组人群镉的膳食摄入水平。方法采用中国总膳食研究方法，利用中国第三次总膳食研究采集的代表性膳食样品及膳食调查数据，测定样品中的镉含量，并计算10个性别年龄组人群镉的摄入量、分布状况及食物来源。结果中国各类食品中镉的平均含量为0．046mg／kg，中位数含量为0．006mg／kg。甲壳贝类及猪肝的镉含量远高于其它食品。中国10个性别年龄组的镉摄入量为12．0～25．9μg／d，占暂定每周可耐受摄入量（PTWI）的30．3％至67．0％。2～7岁年龄组儿童约有14％的个体镉摄入水平高于PTWI。各组人群膳食镉的来源均以谷类、蔬菜和水产类为主，贡献率在80％左右。结论中国各性别年龄组人群的膳食镉摄入量均低于PTWI，但较90年代初有增加的趋势。而且，部分省市人群的镉摄入水平较高。Objective To estimate the dietary cadium intakes by different age-sex groups in China. Methods The cadium concentrations of food sample from 3rd Chinese total diet study were determined, and then combine these data with the food consumption by population of ten age-sex groups, The cadium intakes, and its distribution and dietary sources were obtained. Results It was found that the mean and median concentrations of cadium in all food samples were 0. 046 and 0.006 mg/kg, respectively. The cadium contents in shellfish and liver were far higher than other food staffs. The cadiumintakes by different age-sex groups were estimated to be 12.0 ～ 25.9μg/day, ranged from 30.3 % to 67.0% of PTWI. The individual dietary cadium intakes by 14% children in 2～7 years old group exceed PTWI. Cereals, vegetables and seafood were the main sources of cadium exposure, and contributed about 80% of total intakes. Conclusion Although the dietary cadium intakes by different age-sex groups are all lower than PTWI, they are increased in the past decade. Moreover, in some provinces, the cadium burden of people is heavy.

关 键 词：镉 人群 摄入量 膳食研究 

分 类 号：R151.42[医药卫生—营养与食品卫生学] R155.51[医药卫生—公共卫生与预防医学]