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Vol. 29 (2026 year), No. 2, DOI: 10.21443/1560-9278-2026-29-2

Gordeeva O. N., Poletaeva V. I., Pastukhov M. V., Chuparina E. V., Fereferov E. S.
Geoecological assessment of anthropogenically transformed soils in the Solzan landfill area of the Baikal Pulp and Paper Plant (Southern Coast of Lake Baikal)

Large-scale environmental contamination caused by the Baikal Pulp and Paper Plant and its industrial waste determines the relevance of studying the chemical composition of abiotic and biotic components in the impact area of the anthropogenic source. The aim of the research is to investigate the chemical composition and assess the level of soil contamination in the Solzan landfill and adjacent areas, including the coastal area of Lake Baikal. The study has determined the concentrations of Hg, As, Pb, Cu, Zn, Co, Ni, Cr, Mn, Sr, Ba, Rb, and TOC (total organic carbon) in soils near and far from the lignin sludge storage cell in the Solzan landfill. The obtained results show an extremely uneven distribution of elements across the study area. Abnormal element concentrations exceeding Clarke values, regional background concentrations, and soil sanitary and hygienic assessment criteria have been revealed near the lignin sludge storage cell. The uneven distribution of elements, high organic matter content, and wide range of pH values in the soils indicate an anthropogenic transformation of their chemical composition. The concentration of chemical elements in the soil decreases with distance from the impact area. Widespread soil contamination with zinc has been identified, with concentrations exceeding regional background levels and sanitary and hygienic standards both near and far from the source of contamination. According to the total pollution index, anthropogenically transformed soils in the study area mainly have an acceptable level of contamination. Nevertheless, moderately hazardous and hazardous levels of soil contamination have been detected both near and far from the Solzan landfill.

(in Russian, стр.12, fig. 2, tables. 5, ref 28, AdobePDF, AdobePDF 0 Kb)