T A Bekiasheva

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The values of regional mean concentrations of natural radionuclides in the teeth samples of the RSFSR residents vary within 130-203 mBk/kg for 238U, 174-490 mBk/kg for 226Ra, 1.8-3.4 Bk/kg for 210Pb, 26-56 mBk/kg for 232Th, 50-150 mBk/kg for 228Th. The mean values of 238U in osseous tissue and teeth are similar and equal 120 +/- 35 and 112 +/- 38 mBk/kg,(More)
The concentrations of Th isotopes were determined in the teeth of persons belonging to 3 age groups (under 7,8-16, over 16) from 10 areas of RSFSR. Differences in the content of 228Th and 232Th in the teeth of persons of various ages living in different areas of the RSFSR are statistically insignificant. There is no balance between them in all the samples.(More)
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