Abstract
The collection of heavy metals in soils is a threat to public health and agriculture. Wild and cultivated plants are able to accumulate significant amounts of heavy metals, which on the one hand allows the use of phytopreparations to correct microelement exchange and eliminate hypomicroelementosis. The work shows the results of study of the content of cobalt and cadmium in wastewater, soil and the aboveground part of medicinal and forage plants in the fields of wastewater irrigation located in the sanitary protection zone of Orenburg gas processing plant. 9 types of plants used in medical and veterinary practice in Russia were selected for the study. Water, soil, and plant samples were collected at the end of June from 2018 to 2020. The TM content was determined on the basis of the interdepartmental complex analytical laboratory of FSBEI HE «Orenburg state agrarian university» by atomic absorption spectroscopy using the «Spektr-5» atomic absorption spectrometer (Russia). The ability of species to accumulate cadmium and cobalt in the aboveground part (assimilating and generative organs) was determined. According to the results of the research, the ability of the studied plants to control to a certain extent the intake of cobalt and cadmium from the environment to generative and assimilating organs is seen. Specific differences in the nature of accumulation of cobalt and cadmium in the aboveground part of the studied plants were determined. The results of the study may be of interest for planning enterprises for phytoremediation of technogenically polluted soils and evaluating the quality of medicinal and feed plant raw materials.
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