| Summary: | For many years of industrial development of the Ural region, the mining industry remains one of the main components of the economy, the development of which is accompanied by large-scale environmental pollution and the accumulation of a significant amount of man-made waste with a high potential for negative impact. The article presents the results of experimental studies on the accumulation of heavy metals by L. sativum L. plants, in order to develop the principles of the formation of artificial biogeochemical barriers. As part of the research on the territory of the enterprise leading the development of the copper pyrite deposit, samples of dump waters were taken, which, in turn, were subjected to chemical analysis and a test to assess their phytotoxic (in the absence of a substrate) potential for seed germination and root growth in a model of L. sativum L. The samples were diluted in distilled water to obtain 8 different concentrations (1:80, 1:60, 1:40, 1:20, 1:10, 1: 5, 1: 2, 1: 1), and the effect of waste water without dilution with water, and distilled water was used as a control. In addition, the total amount of metals (Cr, Cu, Ni, Pb, Co and Zn) was determined. The data obtained demonstrated the phytotoxicity of the dump waters, a decrease in root growth in solutions with concentrations of 1: 1, 1: 2, 1: 5, 1:10 and 1:20 was noted, it was shown that these biological objects have accumulating properties with respect to a number of heavy metals.
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