Features of the elemental composition of the hair of the population living in the territory of Southern Kazakhstan

Abstract

 The study is conditioned to the need to obtain data on natural and natural-anthropogenic geochemical processes occurring in the conditions of urbanization and industrial development, including uranium mining. Anthropogenic transformations of territories cause an uneven supply of elements in biogeochemical cycles, which leads to various physiological disorders in living systems, including the human body. To assess this income, the study of the elemental composition of human hair has proven itself well. Purpose: to assess the levels of accumulation of chemical elements in the hair of residents living in the territory of South Kazakhstan, under the influence of technogenesis. Research methods: instrumental neutron activation analysis, which was carried out based on a research nuclear reactor of the National Research Tomsk Polytechnic University. 28 chemical elements were identified (Na, Ca, Sc, Cr, Fe, Co, Zn, As, Br, Rb, Sr, Ag, Sb, Cs, Ba, La, Ce, Nd, Sm, Eu, Tb, Yb, Lu, Hf, Ta, Au, Th, U). Results. The content of 28 chemical elements in the hair of the population in the territory of South Kazakhstan was estimated. The regional specificity of the elemental composition of hair has been established, which is reflected in the accumulation of such elements as strontium, barium, cerium.

Key words: elemental analysis, technogenic impact, instrumental neutron activation analysis, biosubstrate, bioindication.