The main depositing environments of urban landscapes are soils and bottom sediments of watercourses. The research aims to identify the content of the main chemical elements in these components of the urban environment to determine the degree of pollution and environmental risk. X-ray fluorescence analysis on an EDX-800HS (Shimadzu) spectrometer determined the total content of elements in soils and sediments. A decrease in acidity (to a slightly alkaline environment) and increased phosphorus content (to an extremely high level) in soils and bottom sediments were observed as the anthropogenic load increased. In the urbanization process, Pb, Zn, Mn, Cu, Ni, and Cr accumulate to the greatest extent in the upper horizons of soils, and Zn, Cu, Mn, Pb, and V accumulate in bottom sediments. The values of various geoecological indicators of the state of the urban environment (Igeo, PI,NPI) indicate the degradation of the surface layer of soils and a strong degree of pollution with heavy metals, pollution of bottom sediments varies from medium to strong. The chemical pollution indicator Zc characterizes the level of contamination of soils and bottom sediments as acceptable. The potential environmental risk (PERI) in the studied area is insignificant; the level of environmental risk for benthic organisms of the river is medium-low.
The problems of biodiversity reduction and degradation of river ecosystems in the Russian Far East require urgent solutions. This is especially important for areas of intensive development and urbanized territories that are located in the areas of the strongest anthropogenic impact. In order to understand the processes taking place in such ecosystems, an adequate assessment of their ecological state is necessary, based on reliable methods of integrated assessment adapted to regional conditions. To this end, a long-term scientifi c project «Development of methods for a comprehensive assessment of the ecological state of East Russian streams and rivers under anthropogenic infl uence» was initiated. The Muravyov- Amursky Peninsula, on which the Vladivostok urban agglomeration is located, was chosen as a model territory.
The main parameters of the chemical composition of water, bottom sediments and soils ii monitoring sites have been laid from the headwaters to the mouth of the Bezymyanny stream were determined. The characterization of sanitary and microbiological properties of river water is carried out. An increase in the content of macroelements and heavy metals in bottom sediments and soils. The level of pollution was determined using various geoecological indicators. The consequence of the infl uence of the solid waste landfi ll and the highway is an extremely high level of environmental risk on the Glass Beach.