To reduce the toxicity of oiled land plantsaccumulators were used. Para-aminobenzoic acid and the biological preparation Baikal EM-1 were used with biologics and zeolite-containing clays. It was found that seeding accumulating plants treated with the Baikal EM-1 biological product, repeated watering and sweetening with an aqueous solution of a Stevia plant the concentration of oil in the soil and the number of hydrocarbons significantly reduces (from 3.2 to 0.8%). At the same time lead and cadmium decrease to maximum permissible concentrations.