Zhang Lei, Gao Junquan, Li Xiaowei
Institute for Nutrition and Food Safety, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
Wei Sheng Yan Jiu. 2008 May;37(3):338-42.
To estimate the dietary cadium intakes by different age-sex groups in China.
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.
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 cadium intakes by different age-sex groups were estimated to be 12.0 - 25.9 microg/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.
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.
估算中国不同年龄性别组的膳食镉摄入量。
测定第三次中国总膳食研究中食物样本的镉浓度，然后将这些数据与十个年龄性别组人群的食物消费量相结合，得出镉摄入量及其分布和膳食来源。
发现所有食物样本中镉的平均浓度和中位数浓度分别为0.046毫克/千克和0.006毫克/千克。贝类和肝脏中的镉含量远高于其他食物。不同年龄性别组的镉摄入量估计为12.0 - 25.9微克/天，占暂定每周耐受摄入量（PTWI）的30.3%至67.0%。2至7岁组中14%儿童的个体膳食镉摄入量超过PTWI。谷类、蔬菜和海产品是镉暴露的主要来源，约占总摄入量的80%。
虽然不同年龄性别组的膳食镉摄入量均低于PTWI，但在过去十年中有所增加。此外，在一些省份，人群的镉负担较重。
