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The problem of depletion of soils used by man will become critical due to the ever-increasing load on it. Climate change, the ingress and accumulation of toxic substances in it, such as: heavy metals, acidification due to the ingress of nitrogen oxides, as well as salinization - will lead to a drop in soil fertility. The soils of cities are among the most vulnerable, due to the ingress of anti-ice reagents into them along with snow. For the study, such an indicator as sodium adsorption ratio (SAR) is used.