Тяжелые металлы в почвах геохимически сопряженных ландшафтов Красноуральского промышленного узла

Abstract

The results of a study of the gross content of heavy metals in soils in the area of operation of the Svyatogor copper smelter located in the Sverdlovsk region are presented. In the course of the research, sections were laid at different distances and directions from the emission source. The gross concentration of Zn, Cd, Pb, and Cu was measured in the selected soil samples. According to the results of the analysis, a ranking was carried out with the calculations of the total pollution coefficient, lateral and radial differentiation of heavy metals, and the technogenicity index. In order to confirm the routes of the arrival of heavy metals with airport emissions, the maximum single surface concentration in atmospheric air was calculated with the calculation of the distance at which this concentration reaches its maximum value. In the calculation of the total pollution coefficient, it follows that areas located in the immediate vicinity of the emission source have an extremely dangerous category of soil pollution. Also, in these areas, the proportion of technogenic involvement of the element is more than 90%. The obtained values of the coefficient of radial differentiation of heavy metals in the meridional and latitudinal directions, indicates the presence of a number of physical and chemical geochemical geochemical barriers. The migration of heavy metals between conjugated systems is confirmed by the lateral differentiation coefficients. In the course of the work, the main sources of heavy metals entering the soil were identified, such aero-industrial emissions of the plant and aeolian transfer from technogenic disturbed lands. Among the identified patterns of distribution of heavy metals, the main ones are the presence of a high degree of relations of disturbed lands with autonomous natural areas and periodic changes in the direction and power of aero-technogenic flows of the plant.