Home – Home – Jornals – Chemistry for Sustainable Development 2020 number 5

This work deals with the study of the problem of soil contamination with heavy metals in a large city. The content of mobile forms of heavy metals was determined in the soils of the industrial zone in the Kirovskiy region of Novosibirsk at the territory affected by the metallurgical enterprise - Novosibirsk tin plant. Chemical analysis was performed by means of inductively coupled plasma mass spectrometry and atomic absorption. It is shown that the maximum permissible concentrations (MPC) of the following heavy metals are exceeded in the samples under analysis: Cr, Ni, Zn, Pb, Cu. With an increase in the distance from the plant, the content of heavy metals decreases, but the permissible concentrations are exceeded even in the area of natural parkland. To calculate the accumulation of the mobile forms of heavy metals in the soil of the industrial zone near the plant, the MPC value for As was accepted to be equal to the maximum permissible excess (MPE). The sequence of accumulation of the mobile forms of heavy metals in the soil of industrial zone near the plant was formed according to the calculated concentration coefficients: Cr < Ni < Zn < Pb < Cu < As. The category of soil contamination is characterized according to the total pollution index as dangerous.