Abstract
Various elements contained in human hair have been used for an index of environmental pollution effect to human beings. In this report, nondestructive neutron activation analysis was applied to hair samples on 61 inhabiLints at a local district which is free from air pollution. The hair samples were irradiated for 3 minutes or 15 hours (5 hours/day, 3 days) in TRIGA Mark II Reactor at Rikkyo University with a neutron flux of 1.5 × 1012 n/cm2/sec and the activities were measured by a Ge (Li) detector. The contents of 18 elements could be determined: Al, Br, Ca, Cl, Cu, I, Mg, Mn, Na, S and V with the 3 minutes irradiation method, and As, Au, Cr, K, La, Sb and Zn with the 15 hours irradiation method. Concentration-distribution histograms, differences in distribution patterns of these elements by permanent wave treatment, sex and age were discussed.
