Study of radioactive elements accumulation in the hair of high-school children who consumed radionuclide polluted water
Abstract
The article provides data of a survey of 306 children aged 12-16 years to determine the accumulation of heavy metals in their hair. Group I consisted of 167 surveyed schoolchildren (79 boys and 88 girls), who regularly used water polluted with radioactive nuclides. Group II (control group) comprised 139 surveyed schoolchildren (69 boys and 70 girls) who consumed radionuclide-free water from a slowly flowing canal where heavy metals may deposit on the bottom of the canal.
Comparative analysis of the content of 26 chemical elements (U, Th, Sr, Sc, Rb, La, Ca, Cd, Co, Cr, Cu, Fe, K, Ba, Ni, Na, Zn, Hg, Ag, Au, Se, I, Br, Cl, Mn, Sb) in the hair of schoolchildren was carried out. Data on the content of trace elements in hair were obtained using the neutron activation method. It was shown that in the group of schoolchildren who consumed water contaminated with radionuclides, the content of uranium and thorium in the hair was 2.8 and 1.5 times higher than the established norm, respectively. Compared to the control group, the content of radionuclides exceeds: uranium by 4 times, thorium by 6.5 times and strontium by 8.9 times, respectively. The excess of uranium content was revealed in 98.2%, thorium - in 18%, strontium - in 17.4% of cases, respectively.
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