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Mapping of natural radioactivity in soils of Kufa districts, Iraq using GIS technique

Alasadi, Lubna A. ; Abojassim, Ali Abid

Environmental earth sciences, 2022-05, Vol.81 (10), Article 279 [Periódico revisado por pares]

Berlin/Heidelberg: Springer Berlin Heidelberg

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Título:
Mapping of natural radioactivity in soils of Kufa districts, Iraq using GIS technique
Autor: Alasadi, Lubna A. ; Abojassim, Ali Abid
Assuntos: Biogeosciences ; Dimensions ; Earth and Environmental Science ; Earth Sciences ; Environmental Science and Engineering ; Geochemistry ; Geographic information systems ; Geographical information systems ; Geology ; Hydrology/Water Resources ; Information systems ; Natural radioactivity ; Original Article ; Parameters ; Potassium ; Potassium 40 ; Radioactivity ; Remote sensing ; Safety ; Soil ; Soils ; Standard error ; Terrestrial Pollution ; Thorium ; Thorium isotopes ; Thorium-232 ; Uranium ; Uranium 238 ; Uranium isotopes
É parte de: Environmental earth sciences, 2022-05, Vol.81 (10), Article 279
Descrição: This work aims to detect and draw the natural radioactivity levels of uranium-238, thorium- 232, and potassium-40 in soil samples taken from Kufa districts, Najaf governorate, Iraq. The detection system used in the study is NaI(Tl) with a “3 × 3” dimension, while maps are drawn by the geographic information system (GIS). Radiological parameters in all samples of the present study due to a specific activity for 238 U, 232 Th, and 40 K were calculated. The results of the average value with standard error in all samples of the present study for 238 U, 232 Th, 40 K, and 235 U were 6.2 ± 0.74, 6.41 ± 0.82, 278.10 ± 19.43, and 0.28 ± 0.03 Bq/kg, respectively. The specific activity of Uranium-238, Thorium-232, potassium-40, and Uranium-235 found in all soil samples were within the safety limit (33 Bq/kg for 238 U, 45 Bq/kg for 232 Th, and 420 Bq/kg for 40 K) reported by UNSCEAR, except three samples have potassium-40 higher than the safety limit. In addition, the results of radiological parameters were all found to be below OECD and UNSCEAR safety limits. Generally, the average of specific soil activity was arranged with potassium-40 > thorium-232 > uranium-238. The results of investigating natural radioactivity and radiological parameters of soil samples from Kufa districts were radiologically safe.
Editor: Berlin/Heidelberg: Springer Berlin Heidelberg
Idioma: Inglês

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Mapping of natural radioactivity in soils of Kufa districts, Iraq using GIS technique

Alasadi, Lubna A. ; Abojassim, Ali Abid

Berlin/Heidelberg: Springer Berlin Heidelberg

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