毛髪の放射化分析(第8報)毛髪中微量元素含有量に影響する各種要因

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Concentration distribution histograms for each of trace elements, except Zn and Hg, were constructed by converting their concentration scales to 2^m×10^n, and detailed discussion was made on how the factors such as sex, age, hair length, hair treatment, occupations, locality of donors, and others influence the amount of the main trace elements in hair. The amount of elements Al, Cl, Na, and Hg, was higher in male population and conversely the elements Br, Mn, Cu, Au, and Zn. were higher in female population. Age dependency was generally not marked but some characteristics, which could be considered due to the short hair and low contamination, were observed in hair from male infant donors. The sex-dependent non-negligible difference could not be sufficiently explained by the effect of hair length since it was relatively low compared with the sex difference, although the effect was considerably high in some elements. Hair treated with permanent waving or dying exhibited higher amount of Br, Zr, and Mn, than the normal hair. The effect of permanent waving was observed clearly for 2 months after the hair treatment. Hair from farmers and fishermen had in general the highest amount of trace elements and hair from office workers had the lowest amount. Hair from technical workers showed intermediate trends between farmers and fishermen and office workers. From the point of local characteristics, Japanese population were divided into two groups ; one of them was north-eastern group which had higher amount of Al, Cl, Na, Br, and Mn, and the other was south-western group which showed conversely higher amount of heavy metals such as Cu, Au, Zn, and Hg. Hair from Tokyo-Kanagawa district had generally lower amount of trace elements, except for higher amount of Zn and Cu.
公益社団法人日本薬学会の論文
1972-02-29

毛髪の放射化分析(第8報)毛髪中微量元素含有量に影響する各種要因

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