Radioactive contents and background doses from northern alluvial sediment plains between rivers Ravi and Chenab, Pakistan

Jabbar, Abdul; Khan, Khalid Saifullah; Jabbar, Tania; Rafique, Muhammad; Rehman, Saad; Arshed, Waheed; Dilband, Muhammad

doi:10.1007/s41365-016-0085-7

Cited by 5 publications

(1 citation statement)

References 18 publications

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“…Accelerator mass spectrometry (AMS) is an effective and robust technique for studying long-lived actinides (e.g., 236 U, 237 Np, 239 Pu, and 240 Pu) [12,13,14], and inductively coupled plasma mass spectrometry (ICP-MS) is currently the most widely used technique for measuring actinides because of its lower cost compared to AMS. The distribution, sources, migration, and applications of 137 Cs have attracted extensive attention over the past few decades [15,16,17,18,19,20]. 239+240 Pu and 137 Cs in the environment are rapidly and strongly adsorbed by fine soil particles and redistributed within the soil itself [21,22,23].…”

Section: Introductionmentioning

confidence: 99%

First application of plutonium in soil erosion research on terraces

et al. 2023

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The spatial distributions of 239+240Pu and 137Cs in soils from Longji Rice Terraces were investigated to evaluate soil erosion. The activity concentrations of 239+240Pu and 137Cs in the surface soils of the paddy fields were in the range of 0.089–0.734 and 1.80–7.88 mBq/g, respectively. The activities of 239+240Pu and 137Cs showed very similar distribution trends, first increasing and then decreasing with increasing elevation. The 240Pu/239Pu atom ratios in the surface soils ranged from 0.162 to 0.232. The activities of 239+240Pu and 137Cs in the soil cores tended to be uniformly distributed within the plowed layer and declined exponentially below this depth. The mean soil erosion rates of Longji Rice Terraces estimated by 239+240Pu and 137Cs tracer methods were 5.44 t/(ha·a) and 5.16 t/(ha·a), respectively, which demonstrated that plutonium can replace 137Cs as an ideal tracer for soil erosion research in the future. Landform features are the main factors affecting the distribution of plutonium and 137Cs as well as soil erosion in the Longji Rice Terraces.

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