Geochemical assessment of soil pollution of families with heavy metals and risk assessment

2026

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DOI 10.51886/1999-740x_2026_1_36
Data confidence 85 high
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Abstract

Studies of the soils of the city of Semey were carried out in the winter and summer periods during 2024. Gross forms defined in soil are As, Co, Pb, Cu, Zn, Ni, Mn, V, Sr, Sn, Mo, Ba, Ti, Cr, Ag, Li, Nb, Be, Ga, Bi, P, Sc, Y; mobile forms: Pb, Ni, Zn, Cu, Co; and petroleum product content. The content of contaminants was determined by flame atomic absorption spectrometry. All pollutants were assessed for compliance with their regulatory indicators in the soil. The assessment of the state and degree of soil pollution is based on the values of the maximum permissible concentrations (MPC) of pollutants in soils. Calculations of indicators of total soil pollution with heavy metals were performed and risks were assessed. It was established that the degree of pollution of the soil cover of Semey is acceptable, the risk levels are from low to moderately local.