香港职业司机与大学教师头发中微量元素含量对比

Trace elements in scalp hair of porfessional drivers and university teachers in Hong Kong

采集了香港男性职业司机头发２３份，男性大学教师头发２０份，年龄在３５～４５岁之间，测量了发样中的Ａｌ、Ｓｂ、Ａｓ、Ｃａ、Ｃｕ、Ｆｅ、Ｐｂ、Ｍｇ、Ｍｎ、Ｈｇ、Ｋ、Ｓｒ、Ｓ、Ｖ和Ｚｎ的含量，对这组数据做ｔ检验和威尔科克森等级和检验（Ｗ检验）。在司机组中Ａｌ、Ｓｂ、Ｐｂ、Ｍｇ、Ｍｎ、Ｋ的含量明显高于教师组，Ａｓ、Ｈｇ含量低于教师组，并从环境与代谢的角度对此作了初步解释。

Hair samples of 23 male professional drivers and 20 male university teachers in Hong Kong were collected,and the concentrations of Al,Sb,As,Ca,Cu,Fe,Pb,Mg,Mn,Hg,K,Sr,S,V and Zn were measured Both of the target groups fell within the same age group of 35～45 Difference in the mean concentration of each detected element in the two groups was tested by the students t test and Wilcoxon rank sum test Hair concentrations of Al,Sb,Pb,Mg,Mn and K in the“Driver Group”were significantly( P <0 05) higher than those in the“Teacher Group” On the other hand,As and Hg were found to have a higher concentration in hair of teachers Interpretation of the findings were attempted