PIXE analysis of hairs and environmental health impact assessment of mothers and infants on medical checkups

在福冈市的1个月和10个月婴儿医疗检查中收集了3600份母亲和婴儿的头发样本。用粒子激发X射线荧光分析法（PIXE）测定头发中的微量元素。我们编制了一个数据库的测量数据和医疗检查结果。我们发现当母亲头发中硒浓度低时，婴儿的特应性皮炎是常见的。Si、Mn、Br、Sr等元素也有一定的相关性，为PIXE分析提供了可能

3600 hair samples of mothers and infants were collected at one-month and ten-month infant medical checkups in Fukuoka City. Trace elements in the hairs were measured using particle induced X-ray emission (PIXE) method. We compiled a database of the measured data and the medical checkup results. We found atopic dermatitis of infants is frequent when concentration of selenium in mother's hair is low. Relations were also found for Si, Mn, Br and Sr. We found possibility to apply PIXE