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Spatial and vertical distribution of Cs-137 in soils in the erosive area of southeastern Serbia (Pinja and South Morava River Basins)

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2016
Authors
Petrović, Jelena M.
Dragović, Snežana D.
Dragović, Ranko M.
Đorđević, Milan M.
Đokić, Mrđan
Ćujić, Mirjana
Article (Published version)
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Abstract
The area of southeastern Serbia, the Pinja and South Morava River Basins, is under the influence of very strong erosion, and the aim of this study was to investigate the vertical and spatial distribution of the Cs-137 in the eroded soils of this area. Vertical soil profiles were collected with 5-cm increments from the uppermost layer down to 20, 25, 30, 40, and 50 cm of depth, depending on the thickness of the soil layers, i.e., down to the underlying parent rocks. Measurements of Cs-137 activity concentration were performed by using the HPGe gamma-ray spectrometer ORTEC-AMETEK (34 % relative efficiency and high resolution 1.65 keV at 1.33 MeV for Co-60), from its gamma-ray line at 661.2 keV. The mean Cs-137 activity concentration across all 18 soil profiles (for all soil layers) was found to be 20 Bq kg(-1). In the greatest number of soil profiles, the Cs-137 activity concentration was generally highest in the first soil layer (0-5 cm) and decreased with soil depth, while in a few soi...l profiles, the peak of either the Cs-137 activity concentration occurred in the second soil layer (5-10 cm) or the Cs-137 activity concentration was almost equal throughout the entire soil profile. The mean Cs-137 activity concentration in the first soil layer (0-5 cm) was found to be 61 Bq kg(-1), and the high coefficient of variation of 92 % pointed out high spatial variability and large range of the Cs-137 activity concentrations in the study area. The obtained results indicate that in the greatest number of soil profiles, Cs-137 is present in the upper layers, with concentration decreasing with depth, as is typical in uncultivated soil. Its spatial distribution was very uneven among the surface soil layers of the investigated sites. One of the main reasons for such pattern of Cs-137 in the study area may be soil erosion. Additional investigations which would support this hypothesis are required.

Keywords:
Cs-137 / Spatial distribution / Vertical distribution / Southeastern Serbia / Pcinja and South Morava River Basins
Source:
Journal of soils and sediments, 2016, 16, 4, 1168-1175
Funding / projects:
  • Advanced technologies for monitoring and environmental protection from chemical pollutants and radiation burden (RS-43009)
Note:
  • General Assembly of the European-Geosciences-Union (EGU), May 02, 2014, Vienna, Austria

DOI: 10.1007/s11368-015-1192-5

ISSN: 1439-0108; 1614-7480

WoS: 000372154600003

Scopus: 2-s2.0-84961121950
[ Google Scholar ]
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1
URI
https://vinar.vin.bg.ac.rs/handle/123456789/7098
Collections
  • WoS Import
Institution/Community
Vinča
TY  - JOUR
AU  - Petrović, Jelena M.
AU  - Dragović, Snežana D.
AU  - Dragović, Ranko M.
AU  - Đorđević, Milan M.
AU  - Đokić, Mrđan
AU  - Ćujić, Mirjana
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7098
AB  - The area of southeastern Serbia, the Pinja and South Morava River Basins, is under the influence of very strong erosion, and the aim of this study was to investigate the vertical and spatial distribution of the Cs-137 in the eroded soils of this area. Vertical soil profiles were collected with 5-cm increments from the uppermost layer down to 20, 25, 30, 40, and 50 cm of depth, depending on the thickness of the soil layers, i.e., down to the underlying parent rocks. Measurements of Cs-137 activity concentration were performed by using the HPGe gamma-ray spectrometer ORTEC-AMETEK (34 % relative efficiency and high resolution 1.65 keV at 1.33 MeV for Co-60), from its gamma-ray line at 661.2 keV. The mean Cs-137 activity concentration across all 18 soil profiles (for all soil layers) was found to be 20 Bq kg(-1). In the greatest number of soil profiles, the Cs-137 activity concentration was generally highest in the first soil layer (0-5 cm) and decreased with soil depth, while in a few soil profiles, the peak of either the Cs-137 activity concentration occurred in the second soil layer (5-10 cm) or the Cs-137 activity concentration was almost equal throughout the entire soil profile. The mean Cs-137 activity concentration in the first soil layer (0-5 cm) was found to be 61 Bq kg(-1), and the high coefficient of variation of 92 % pointed out high spatial variability and large range of the Cs-137 activity concentrations in the study area. The obtained results indicate that in the greatest number of soil profiles, Cs-137 is present in the upper layers, with concentration decreasing with depth, as is typical in uncultivated soil. Its spatial distribution was very uneven among the surface soil layers of the investigated sites. One of the main reasons for such pattern of Cs-137 in the study area may be soil erosion. Additional investigations which would support this hypothesis are required.
T2  - Journal of soils and sediments
T1  - Spatial and vertical distribution of Cs-137 in soils in the erosive area of southeastern Serbia (Pinja and South Morava River Basins)
VL  - 16
IS  - 4
SP  - 1168
EP  - 1175
DO  - 10.1007/s11368-015-1192-5
ER  - 
@article{
author = "Petrović, Jelena M. and Dragović, Snežana D. and Dragović, Ranko M. and Đorđević, Milan M. and Đokić, Mrđan and Ćujić, Mirjana",
year = "2016",
abstract = "The area of southeastern Serbia, the Pinja and South Morava River Basins, is under the influence of very strong erosion, and the aim of this study was to investigate the vertical and spatial distribution of the Cs-137 in the eroded soils of this area. Vertical soil profiles were collected with 5-cm increments from the uppermost layer down to 20, 25, 30, 40, and 50 cm of depth, depending on the thickness of the soil layers, i.e., down to the underlying parent rocks. Measurements of Cs-137 activity concentration were performed by using the HPGe gamma-ray spectrometer ORTEC-AMETEK (34 % relative efficiency and high resolution 1.65 keV at 1.33 MeV for Co-60), from its gamma-ray line at 661.2 keV. The mean Cs-137 activity concentration across all 18 soil profiles (for all soil layers) was found to be 20 Bq kg(-1). In the greatest number of soil profiles, the Cs-137 activity concentration was generally highest in the first soil layer (0-5 cm) and decreased with soil depth, while in a few soil profiles, the peak of either the Cs-137 activity concentration occurred in the second soil layer (5-10 cm) or the Cs-137 activity concentration was almost equal throughout the entire soil profile. The mean Cs-137 activity concentration in the first soil layer (0-5 cm) was found to be 61 Bq kg(-1), and the high coefficient of variation of 92 % pointed out high spatial variability and large range of the Cs-137 activity concentrations in the study area. The obtained results indicate that in the greatest number of soil profiles, Cs-137 is present in the upper layers, with concentration decreasing with depth, as is typical in uncultivated soil. Its spatial distribution was very uneven among the surface soil layers of the investigated sites. One of the main reasons for such pattern of Cs-137 in the study area may be soil erosion. Additional investigations which would support this hypothesis are required.",
journal = "Journal of soils and sediments",
title = "Spatial and vertical distribution of Cs-137 in soils in the erosive area of southeastern Serbia (Pinja and South Morava River Basins)",
volume = "16",
number = "4",
pages = "1168-1175",
doi = "10.1007/s11368-015-1192-5"
}
Petrović, J. M., Dragović, S. D., Dragović, R. M., Đorđević, M. M., Đokić, M.,& Ćujić, M.. (2016). Spatial and vertical distribution of Cs-137 in soils in the erosive area of southeastern Serbia (Pinja and South Morava River Basins). in Journal of soils and sediments, 16(4), 1168-1175.
https://doi.org/10.1007/s11368-015-1192-5
Petrović JM, Dragović SD, Dragović RM, Đorđević MM, Đokić M, Ćujić M. Spatial and vertical distribution of Cs-137 in soils in the erosive area of southeastern Serbia (Pinja and South Morava River Basins). in Journal of soils and sediments. 2016;16(4):1168-1175.
doi:10.1007/s11368-015-1192-5 .
Petrović, Jelena M., Dragović, Snežana D., Dragović, Ranko M., Đorđević, Milan M., Đokić, Mrđan, Ćujić, Mirjana, "Spatial and vertical distribution of Cs-137 in soils in the erosive area of southeastern Serbia (Pinja and South Morava River Basins)" in Journal of soils and sediments, 16, no. 4 (2016):1168-1175,
https://doi.org/10.1007/s11368-015-1192-5 . .

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