Hygienic assessment of the security with selenium in various groups of the population of the Orenburg region

The integrated approach to studying of the element status of the population as a whole, is an actual problem in biology and medicine. 1270 people took part in research - children, teenagers and adults. Selenium definition in hair was carried out on the basis of test laboratory Autonomous Non-Commercial Organization Center of Biotic Medicine, according to methodical instructions TORMENTS 4.1.1482-03, 4.1.1483-03. Average values of selenium in hair (25 - 75 testily interval), received when carrying out population researches in various regions of Russia became a basis for an assessment of accumulation of selenium in hair surveyed. These testily intervals were accepted by us, according to A.V. Skalnu (2003) recommendations, as reference sizes for persons of the corresponding age. These concentration of selenium received during research in hair of the children’s population were much lower than reference sizes: at boys this indicator was lowered by 1,3 times, and at girls by 1,5 times of rather minimum level of physiologically admissible sizes for persons of the corresponding age. The similar picture developed and in group of the surveyed teenagers. Four multiple decrease in indicators of concentration of selenium in hair of both groups of teenagers concerning level 25 testily was established. The comparative analysis of concentration of selenium in hair of adult population of the Orenburg region established decrease in concentration of selenium in hair in all surveyed on the average by 1,5 times of rather reference sizes. The hygienic assessment of concentration of selenium in hair of all surveyed persons revealed decrease in concentration of selenium in hair rather physiologically admissible sizes for all surveyed age groups of the population of the Orenburg region.