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Title: The mobility of {sup 137}Cs and {sup 90}Sr in agricultural soils in the Ukraine, Belarus, and Russia, 1991

Abstract

Results are presented from studies concerning the behavior of the Chernobyl-derived radionuclides {sup 137}Cs and {sup 90}Sr in soil-plant agricultural systems in the Ukraine, Belarus, and Russia during 1991. The sites, representing ploughed and natural pastures, were located at varying distances between 50 and 650 km and varying directions from the Chernobyl reactor site. The {sup 137}Cs activity concentrations in the upper 0-5 cm soil layer ranged from 25-1,000 kBq m{sup {minus}2} and were higher in natural pastures as compared to ploughed pastures. For {sup 90}Sr, activity levels ranged from 1.4-40 kBq m{sup {minus}2}, and the highest {sup 90}Sr deposition was observed in the Gomel Region, Belarus. The highest {sup 90}Sr:{sup 137}Cs ratio was also observed in the Gomel soils, i.e., 15% as compared to between 0.72 and 7.4% in the other soils. The mobility of radionuclides was studied by means of sequential extraction. For all soils, between 60 and 95% of the {sup 137}Cs was found to be strongly bound to soil components. In the Russian and Ukrainian soils, between 40 and 98% of the {sup 90}Sr was found in the easily extractable fractions, and the distribution of {sup 137}Cs and {sup 90}Sr followed that of the naturally occurringmore » stable isotopes of cesium and strontium. However, in the Gomel soils, between 20 and 50% of the {sup 90}Sr was easily extractable and the distribution of {sup 90}Sr within the extraction fractions did not follow that observed for stable strontium. These results are though to reflect the association of {sup 90}Sr with fuel particles deposited in the Gomel Region. The mobility of {sup 90}Sr is expected to increase with time (as the particles weather) in these soils. 24 refs., 14 figs., 3 tabs.« less

Authors:
;  [1]; ; ; ;  [2]; ;  [3]; ;  [4]
  1. Agricultural Univ. of Norway, Aas (Norway)
  2. Russian Institute of Agricultural Radiology and Agroecology, Obninsk (Russian Federation)
  3. Belorussian Research and Agroecology, Gomel (Belarus)
  4. Ukrainian Institute of Agricultural Radiology (Ukraine)
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
55323
Resource Type:
Journal Article
Journal Name:
Health Physics
Additional Journal Information:
Journal Volume: 67; Journal Issue: 5; Other Information: PBD: Nov 1994
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; PASTURES; FALLOUT DEPOSITS; BETA-MINUS DECAY RADIOISOTOPES; RADIONUCLIDE MIGRATION; CESIUM 137; STRONTIUM 90; UKRAINE; BELARUS; RUSSIAN FEDERATION; FUEL PARTICLES

Citation Formats

Salbu, B, Oughton, D H, Ratnikov, A V, Zhigareva, T L, Kruglov, S V, Petrov, K V, Grebenshakikova, N V, Firsakova, S K, Astasheva, N P, and Loshchilov, N A. The mobility of {sup 137}Cs and {sup 90}Sr in agricultural soils in the Ukraine, Belarus, and Russia, 1991. United States: N. p., 1994. Web. doi:10.1097/00004032-199411000-00007.
Salbu, B, Oughton, D H, Ratnikov, A V, Zhigareva, T L, Kruglov, S V, Petrov, K V, Grebenshakikova, N V, Firsakova, S K, Astasheva, N P, & Loshchilov, N A. The mobility of {sup 137}Cs and {sup 90}Sr in agricultural soils in the Ukraine, Belarus, and Russia, 1991. United States. https://doi.org/10.1097/00004032-199411000-00007
Salbu, B, Oughton, D H, Ratnikov, A V, Zhigareva, T L, Kruglov, S V, Petrov, K V, Grebenshakikova, N V, Firsakova, S K, Astasheva, N P, and Loshchilov, N A. Tue . "The mobility of {sup 137}Cs and {sup 90}Sr in agricultural soils in the Ukraine, Belarus, and Russia, 1991". United States. https://doi.org/10.1097/00004032-199411000-00007.
@article{osti_55323,
title = {The mobility of {sup 137}Cs and {sup 90}Sr in agricultural soils in the Ukraine, Belarus, and Russia, 1991},
author = {Salbu, B and Oughton, D H and Ratnikov, A V and Zhigareva, T L and Kruglov, S V and Petrov, K V and Grebenshakikova, N V and Firsakova, S K and Astasheva, N P and Loshchilov, N A},
abstractNote = {Results are presented from studies concerning the behavior of the Chernobyl-derived radionuclides {sup 137}Cs and {sup 90}Sr in soil-plant agricultural systems in the Ukraine, Belarus, and Russia during 1991. The sites, representing ploughed and natural pastures, were located at varying distances between 50 and 650 km and varying directions from the Chernobyl reactor site. The {sup 137}Cs activity concentrations in the upper 0-5 cm soil layer ranged from 25-1,000 kBq m{sup {minus}2} and were higher in natural pastures as compared to ploughed pastures. For {sup 90}Sr, activity levels ranged from 1.4-40 kBq m{sup {minus}2}, and the highest {sup 90}Sr deposition was observed in the Gomel Region, Belarus. The highest {sup 90}Sr:{sup 137}Cs ratio was also observed in the Gomel soils, i.e., 15% as compared to between 0.72 and 7.4% in the other soils. The mobility of radionuclides was studied by means of sequential extraction. For all soils, between 60 and 95% of the {sup 137}Cs was found to be strongly bound to soil components. In the Russian and Ukrainian soils, between 40 and 98% of the {sup 90}Sr was found in the easily extractable fractions, and the distribution of {sup 137}Cs and {sup 90}Sr followed that of the naturally occurring stable isotopes of cesium and strontium. However, in the Gomel soils, between 20 and 50% of the {sup 90}Sr was easily extractable and the distribution of {sup 90}Sr within the extraction fractions did not follow that observed for stable strontium. These results are though to reflect the association of {sup 90}Sr with fuel particles deposited in the Gomel Region. The mobility of {sup 90}Sr is expected to increase with time (as the particles weather) in these soils. 24 refs., 14 figs., 3 tabs.},
doi = {10.1097/00004032-199411000-00007},
url = {https://www.osti.gov/biblio/55323}, journal = {Health Physics},
number = 5,
volume = 67,
place = {United States},
year = {1994},
month = {11}
}