Heavy metals in soils of various functional zones of urbanized territories: assessment of the content and environmental risk
T.A. Trifonova, I.N. Kurochkin, Yu.N. Kurbatov
Section: Methodology and research methods. Models and forecasts
In order to analyze heavy metal pollution of urbanized soils of the city of Vladimir, the selection and study of soil samples was carried out. Soil samples were analyzed for lead, zinc, copper, nickel, manganese, cobalt and chromium. The obtained indicators were compared with the maximum permissible concentrations and background values. The regularities between the proximity of the studied sites to industrial enterprises and the concentration of heavy metals in the soil are established. The coefficients of accumulation of heavy metals in soils have been calculated and metals that are priority pollutants with the highest accumulation coefficient have been identified. By calculating the total accumulation index, the territory of the city is differentiated by the degree of danger. The calculation of such indicators as: the general pollution index PLI, the indicator of potential environmental risk PERI, the Nemerow pollution index (NPI). It has been established that lead, arsenic and zinc are priority pollutants. The degree of soil contamination of various functional zones according to the indicator of potential environmental risk and the general pollution index PLI increases in the following series: zones of multi-storey buildings < zones of green spaces < zones of transport infrastructure < zones of low-rise buildings < industrial zones.
Keywords: heavy metals, functional zoning, soil pollution, urbanized soils, anthropogenic impact, geoinformation systems
Article published in number 2 for 2023 DOI: 10.25750/1995-4301-2023-2-038-046
ISSN 1995-4301
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