gesjGEOGRAPHY, ENVIRONMENT, SUSTAINABILITYGEOGRAPHY, ENVIRONMENT, SUSTAINABILITY2071-93882542-1565Russian Geographical Society10.24057/2071-9388-2026-4420gesj-5045Research ArticleRESEARCH PAPERСтатьиSoil characteristics of an arctic city: mineralogical and chemical composition, pollution risks and toxicity assessment (novy urengoy, russia)OpekunovaMarina G.

10th line of Vasilievsky Island, 31-33, Saint Petersburg, 199178

OpekunovA. Yu.

10th line of Vasilievsky Island, 31-33, Saint Petersburg, 199178

KukushkinStepan Yu.

10th line of Vasilievsky Island, 31-33, Saint Petersburg, 199178

NikulinaAnna R.

10th line of Vasilievsky Island, 31-33, Saint Petersburg, 199178

anna.2001-nik@mail.ruProkhorovaValeria

10th line of Vasilievsky Island, 31-33, Saint Petersburg, 199178

LemkinaVlada V.

10th line of Vasilievsky Island, 31-33, Saint Petersburg, 199178

Saint Petersburg State UniversityRussian Federation2026091020261936376Copyright © Opekunova M.G., Opekunov A.Y., Kukushkin S.Y., Nikulina A.R., Prokhorova V., Lemkina V.V., 20262026Opekunova M.G., Opekunov A.Y., Kukushkin S.Y., Nikulina A.R., Prokhorova V., Lemkina V.V.Opekunova M.G., Opekunov A.Y., Kukushkin S.Y., Nikulina A.R., Prokhorova V., Lemkina V.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://ges.rgo.ru/jour/article/view/5045

Urbanization leads to multi-component environmental pollution, so it is especially important to conduct a comprehensive screening of transformations of vulnerable Arctic soils. An assessment of urban soil pollution in Novy Urengoy was conducted, providing a detailed geochemical characterization of the study areas. Electron microscopy confirmed the presence of both rock-forming mineral inclusions and heterogeneous solid particles of various origins: ore minerals (sphalerite, galena, cinnabar, cassiterite, argentite, atacamite), finely dispersed silver and gold particles, Cu-Ni-Zn and Fe-Cr-Ti-Mn alloys, titanium plates, and microplastics. The content of petroleum and polycyclic aromatic hydrocarbons (PAHs) is predominantly low, except for several sites near transport infrastructure, where petroleum hydrocarbon content reaches 2200–2400 mg/ kg and the sum of 15 PAHs achieves 84 μg/kg. Natural factors remain the leading drivers of soil chemical composition. Local exceedances of Russian regulatory standards for Zn were detected in transport and residential areas. The Cd-Pb-ZnCu-Ni association indicates pollution derived from motor vehicle emissions. In urban areas, residential development acts as an additional source of Ca-Mn-Co-Sr-Zn compounds. Calculation of the mean effects range median quotient (MERMQ) for contaminated soils revealed low and moderate risk levels. Biotesting using Daphnia magna, Chlorella vulgaris, and Lepidium sativum demonstrated acute toxicity in soils contaminated with PAHs and petroleum hydrocarbons. The integrated landscape total pollution index (LTP), based on the Harrington desirability function, confirmed that motor vehicles are the primary source of urban pollution.

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The authors declare that there are no conflicts of interest present.