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The relevance of the study is dictated by the need for constant environmental monitoring of environmental objects in the Sverdlovsk region, in particular, soils due to the high level of anthropogenic load on the territory. The purpose of the work is to assess the degree of contamination of residential landscapes and agricultural lands in the Sverdlovsk region with heavy metals by determining the concentration of gross forms of heavy metals and calculating quantitative criteria for contamination with heavy metals. Objects: soil samples from several points of the Sverdlovsk region, representing urbanized territories and agricultural land. Methods: mechanical and chemical sample preparation of soils; potentiometric method for determining the nature of the soil environment; inversion voltammetry method for determining the concentration of gross forms of heavy metals. Results. The correspondence of sampling points to soil provinces is established, a brief description of the granulometric and geochemical composition of the studied soils is given. It was found that the analyzed soils are contaminated with nickel, zinc, lead and copper; there is a multiple excess of the approximate permissible concentrations of nickel in the soils of Ekaterinburg and Pervouralsk. The main sources of technogenic soil pollution of the Sverdlovsk region with heavy metals are listed. Natural factors contributing to the accumulation of metals are considered; possible mechanisms of fixing heavy metals in the soils of the region are described. The ranking of metal pollutants by their content in the studied soils was carried out. Quantitative criteria for the degree of soil pollution are calculated: the total pollution index and the geoaccumulation index. Based on the obtained values of the specified parameters, it is shown that the soils of residential landscapes are characterized by a moderately dangerous level of pollution, agricultural soils – an acceptable level of pollution. It was found that the greatest contribution to the total pollution index is made by cadmium.

The paper presents the results of the determination of heavy metals in drinking water samples from centralized water supply systems and wells of individual water supply of the Sverdlovsk region. It was found that the content of copper ions in the samples does not exceed its maximum permissible concentration, and the content of lead and cadmium ions in most samples is higher than the permissible norms. It is established that water samples from Nizhny Tagil and Serov are more contaminated with cadmium. The causes of drinking water pollution are discussed. It was found that the pollution of water from the centralized water supply systems with heavy metals is mainly due to the non-compliance of the operated water pipes with sanitary and hygienic requirements. Groundwater pollution is caused by the infiltration of industrial effluents containing heavy metals from storage and sedimentation tanks through soil. It is shown that numerous industrial enterprises in the Sverdlovsk region aggravate the process of pollution of surface and groundwater with heavy metals. The unsatisfactory quality of water in terms of the content of heavy metals in Sverdlovsk region is revealed. The authors dwell on the need to continue research to determine the content of other heavy metals in water and expand the geography of sampling in the region in order to assess more accurately the quality of water.