Abstract
<jats:p>This article examines the heavy metal pollution of bottom sediments and vegetative organs of Carex rostrata Stokes in seepage fields. It describes the routes and pathways by which pollutants enter bottom sediments, as well as the characteristics of their accumulation in the vegetative organs of plants. The paper presents the results of a comparison of bottom sediment pollution with heavy metals, compared to the clarke value and freshwater bottom sediments. Absorption intensity series were constructed based on the calculated biological absorption coefficients. Heavy metal content was studied in seepage fields in the Nizhnetavdinsky District of the Tyumen Region. The studies revealed elevated levels of several heavy metals in bottom sediments in this area, the main elements being iron and manganese. As the heavy metal content (iron, cobalt, and manganese) in bottom sediments increased, the intensity of their absorption by plants decreased. The obtained data can serve as a basis for further monitoring of the state of bottom sediments and vegetation in the context of assessing the environmental safety and sustainability of ecosystems. Keywords: BOTTOM SEDIMENTS, HEAVY METALS, FILTRATION FIELDS, BIOLOGICAL ABSORPTION COEFFICIENT, BACKGROUND VALUES, ACCUMULATION OF THESE ELEMENTS, POLLUTION LEVEL</jats:p>