First Assessment of Soil Cover Pollution with Polycyclic Aromatic Hydrocarbons in the City of Ulan-Ude

The content of 17 individual polycyclic aromatic hydrocarbons (PAHs) was analyzed in samples of background and urban soils obtained during a geochemical survey of the territory of Ulan-Ude in the summer of 2022 for the first time. The average content of PAHs in the urban soils is 801 ng/g, which is...

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Bibliographic Details
Published in:Doklady earth sciences 2024-10, Vol.518 (2), p.1770-1775
Main Authors: Kosheleva, N. E., Zhaxylykov, N. B., Zavgorodnyaya, Yu. A., Kasimov, N. S.
Format: Article
Language:English
Subjects:
Aromatic compounds
Earth and Environmental Science
Earth Sciences
Geochemical surveys
Geoecology
Molecular weight
Pollution sources
Polycyclic aromatic hydrocarbons
Principal components analysis
Soil
Soil analysis
Soil pollution
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Summary:The content of 17 individual polycyclic aromatic hydrocarbons (PAHs) was analyzed in samples of background and urban soils obtained during a geochemical survey of the territory of Ulan-Ude in the summer of 2022 for the first time. The average content of PAHs in the urban soils is 801 ng/g, which is more than 8.5 times higher than the level in background chestnut soils. The soil cover is contaminated primarily with medium- and high-molecular-weight PAHs. The proportions of individual PAHs in the soils of Ulan-Ude range within 4–11% at an average value of 6%. The urban soil cover is found to have ten high-contrast anomalies with the sum of PAHs ranging from 3162 to 10 189 ng/g. The principal component analysis and ratios of PAHs have made it possible to identify the main types of PAH sources and their contribution to urban soil pollution.
ISSN:1028-334X
1531-8354
DOI:10.1134/S1028334X24602888