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测定了呼和浩特市区196名不同民族、不同性别5岁健康儿童头发中Zn、Fe、Cu、Mg。Ca含量，同时量取了体重、身高、头围、胸围等数据；严格按民族、性别分组进行统计计算。结果发现同一地区同年龄、同性别不同民族儿童头发中上述五种元素含量及有关身体参数均有一定的区别。同地区、同民族、同年龄不同性别健康儿童头发中有些元素含量及身体参数也有差别。
The contents of Zn, Fe, Cu and Mg in hair of 196 healthy children of 5 different nationalities and of different sex in Hohhot city were measured. Ca content, while taking the weight, height, head circumference, chest circumference and other data; strictly in accordance with national and gender groups for statistical calculations. The results showed that in the same area with the same age, same-sex children of different ethnic hair content of the above five elements and the relevant body parameters are some differences. There are also differences in the content of some elements and body parameters in the hair of children of the same sex, with different nationalities, and with different sexes at the same age.