IPEN-CNEN/SP Instituto de Pesquisas Energéticas e Nucleares Av. Prof. Lineu Prestes, 2242 CEP 05508-000 São Paulo SP Brazil
Universidade de São Paulo Faculdade de Medicina Rua Dr Enéas de Carvalho Aguiar 155 Cerqueira César CEP 05403-010 São Paulo SP Brazil
Universidade de São Paulo Central Laboratory Division & Laboratories of Medical Investigation (LIM-03), Hospital das Clinicas da Faculdade de Medicina Rua Dr Enéas de Carvalho Aguiar 155, Cerqueira César CEP 05403-010 São Paulo SP Brazil
Neutron activation analysis was applied to assess trace elements concentrations in head hair from healthy elderly people living
in the São Paulo metropolitan area. Concentrations of As, Br, Ca, Cl, Co, Cr, Cu, Fe, K, La, Mn, Na, Sb, Se and, Zn were determined.
Comparisons were made between the results obtained for dyed and non-dyed hair as well as for hair from females and males of
two different age groups. The results were also compared with range values established by clinical laboratories and published