Properties of Urban Soils after Decontamination Measures on the Radioactively Contaminated Territory of the City of Elektrostal

Lipatov, D.N.; Varachenkov, V.A.; Manakhov, D.V.; Agapkina, G.I.; Shcheglov, A.I.

Авторы: Lipatov D.N., Varachenkov V.A., Manakhov D.V., Agapkina G.I., Shcheglov A.I.
Журнал: Moscow University Soil Science Bulletin
Том: 79
Номер: 2
Год издания: 2024
Издательство: Allerton Press Inc.
Местоположение издательства: United States
Первая страница: 167
Последняя страница: 176
DOI: 10.3103/S0147687424700030
Аннотация: We studied the morphological properties, pH, organic carbon content, and specific activity of137Cs and natural radionuclides (40K, 226Ra, 232Th) in the upper horizons of soils in deactivated and slightlydamaged areas of the city. The studies were carried out in the urban ecosystems of the city of Elektrostal(Moscow oblast) in 2019, i.e., 6 years after local precipitation of 137Cs due to a radiation incident. The morphologicalfeatures of the upper horizons of urban soils were the following: brownish-gray color, light-loamycomposition, and small-lumpy and lumpy structure, with inclusions of construction and household waste.In the upper horizons of urban quasizems and urban soils, a low carbon content (less than 1%) with high coefficientsof variation were detected. In the studied urban soils, a wide range of water pH values was noted: froman acidic (4.6–5.5) to highly alkaline (>8.0) reaction. Correlation analysis showed that, in the upper horizonsof UR, the content of organic carbon was reduced and alkalinization of the soil environment was observed.The accumulative type of distribution of 137Cs was recorded for soil profiles of polluted urban ecosystems inwhich decontamination measures were not carried out. The profiles of urban soils that were subjected todecontamination revealed low values of the specific activity of 137Cs in surface bulk layers and maxima in buriedcontaminated horizons. In the bulk horizons of UR, which include a large amount of crushed stone, therewas an increase in the specific activity of 226Ra. Some technogenic horizons of UR and TCH, consistingmainly of quartz sand, are characterized by very low values of specific activities 226Ra and 40K. Correlationsof chemical and radiation indicators in the profiles of urban soils reflect the different compositions and propertiesof upper horizons formed as a result of excavation and decontamination work.
Добавил в систему: Липатов Денис Николаевич

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Properties of Urban Soils after Decontamination Measures on the Radioactively Contaminated Territory of the City of Elektrostalстатья

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