Mitigation of radium-226 in agricultural soils and influence of soil-to-plant transfer factor and physical–chemical properties of soil

The mitigation rate ( R j ) was evaluated for Ra-226 in cultivated soil in twelve fields in Vietnam. For the collected soils, the R j values were between 0.1 and 0.58 Bq kg −2  y −1 with an average value of 0.28 Bq kg −2  y −1 . The influence of the physicochemical properties of soil and cultivation...

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Bibliographic Details
Published in:Journal of radioanalytical and nuclear chemistry 2024-04, Vol.333 (4), p.2155-2162
Main Authors: Nguyen, Van Thang, Huynh, Thi Yen Hong, Truong, Huu Ngan Thy, Huynh, Nguyen Phong Thu, Le, Cong Hao
Format: Article
Language:English
Subjects:
Chemical properties
Chemistry
Chemistry and Materials Science
Diagnostic Radiology
Hadrons
Heavy Ions
Infiltration rate
Inorganic Chemistry
Leaching
Nuclear Chemistry
Nuclear Physics
Physical Chemistry
Radium
Radium 226
Soil chemistry
Soil properties
Soil water
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Summary:The mitigation rate ( R j ) was evaluated for Ra-226 in cultivated soil in twelve fields in Vietnam. For the collected soils, the R j values were between 0.1 and 0.58 Bq kg −2  y −1 with an average value of 0.28 Bq kg −2  y −1 . The influence of the physicochemical properties of soil and cultivation characteristics on the rate of Ra-226 was considered. A strong correlation was found between the soil-to-plant factors (TF) and the uptake rates of plants ( R u ) (Pearson coefficient | p |> 0.6). The leaching rate ( R ℓ ) in the surface soil correlates with some physical–chemical properties of soil such as the partition coefficient of Ra-226 in soil ( K d ), infiltration rate of water ( R w ), and activity concentration of Ra-226 in soil water ( C w ) (| p |> 0.6).
ISSN:0236-5731
1588-2780
DOI:10.1007/s10967-024-09423-8