Regional peculiarities of trace elements in the biosphere and the human body

Abstract

From literary data it is known the investigation of contents and influence on an organism of chemical elements to be urgent, the carrying out such researches in the urbanized territories is especially important. The Orenburg region as production and processing of minerals (metal ore, hydrocarbons, etc.) undoubtedly treats such territories having been conducted since the 12th century. In this regard in the territory of the Orenburg region, the complex large-scale research of the trace element status of the territory is implemented. In 35 administrative regions of area samples of a surrounding environment and biosubstrate (hair) of constantly living population was taken. Research on the detection of chemical elements (Zn, Cu, Cd, Pb) in biosubstrate were carried out in the Autonomous non-profit organization "Center for Biotic Medicine", and samples of a surrounding environment were examined in laboratories of the Exploring Center "All-Russian scientific research institute of meat cattle breeding" of the Russian Academy of Agrarian Sciences. Results of researches show factors of natural and technogenic character to have an impact on the maintenance of essential and toxic minerals in the environment. In underground waters, there was established the minimum content of zincum, copper, cadmium, and lead to be revealed in samples from areas of the Western and the Central Orenburg region. Moreover, the concentration of zincum, copper, cadmium, and lead in water of East zone, achieves the threshold limit value. The concentration in soils of zincum and copper was found to correspond to the maximum allowable concentration in samples from the East Orenburg region. The performed research of trace element structure of hair of the population of the Orenburg region showed both the content of the vital chemical elements (Zincum and copper) in an organism of the studied population to fail to correspond to reference values, the increased level of the studied elements (woman) in inhabitants of East zone, and the lower level zincum and copper in the examined population of the Central and Western area. The correlation and regression analysis allowed to establish the content of chemical elements in the soil to have the significant, reliable (p ≤ 0.05) influence on the element status of the examined residents of the Orenburg region.