Investigation of naturally occurring radionuclides in selected medicinal plants and associated soils, and calculation of soil-to-plant transfer factors

IF 1.9 3区环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES

Journal of environmental radioactivity Pub Date : 2024-10-28 DOI:10.1016/j.jenvrad.2024.107556

Madan Khanal , Arjun Acharya , Rajesh Maharjan , Devendra Raj Upadhyay , Saddam Husain Dhobi , Buddha Ram Shah , Rameshwar Adhikari , Deependra Das Mulmi , Tika Ram Lamichhane , Hari Prasad Lamichhane

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引用次数: 0

Abstract

This study investigated the activity concentrations of ²²⁶Ra, ²³²Th, and ⁴⁰K and their soil-to-plant transfer factors in some medicinal plants located in Nepal. The geometric mean values of soil-to-plant transfer factors (TFs) for ²²⁶Ra, ²³²Th, and ⁴⁰K were 0.37, 0.96, and 3.50, respectively. This indicated that medicinal plants absorbed the highest amount of ⁴⁰K from the soil, followed by ²³²Th, while ²²⁶Ra was absorbed the least. The average radium equivalent activities for medicinal plants (189 Bq/kg) and associated soils (182 Bq/kg) were within the international acceptable limit of 370 Bq/kg. According to the activity concentrations found in the medicinal plants, they do not present any radiological health hazards unless consumed in excessive quantities; however, continuous investigations are essential.

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调查选定药用植物及相关土壤中的天然放射性核素，并计算土壤-植物转移因子

本研究调查了尼泊尔一些药用植物中 226Ra、232Th 和 40K 的放射性浓度及其土壤-植物转移因子。226Ra、232Th 和 40K 的土壤-植物转移因子（TFs）的几何平均值分别为 0.37、0.96 和 3.50。这表明药用植物从土壤中吸收的 40K 最多，其次是 232Th，而吸收的 226Ra 最少。药用植物的平均镭当量活度（189 Bq/kg）和相关土壤的平均镭当量活度（182 Bq/kg）均在 370 Bq/kg 的国际可接受限值之内。根据在药用植物中发现的放射性活度浓度，除非食用过量，否则不会对健康造成任何放射性危害；不过，必须继续进行调查。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of environmental radioactivity 环境科学-环境科学

CiteScore

4.70

自引率

13.00%

发文量

209

审稿时长

73 days

期刊介绍： The Journal of Environmental Radioactivity provides a coherent international forum for publication of original research or review papers on any aspect of the occurrence of radioactivity in natural systems. Relevant subject areas range from applications of environmental radionuclides as mechanistic or timescale tracers of natural processes to assessments of the radioecological or radiological effects of ambient radioactivity. Papers deal with naturally occurring nuclides or with those created and released by man through nuclear weapons manufacture and testing, energy production, fuel-cycle technology, etc. Reports on radioactivity in the oceans, sediments, rivers, lakes, groundwaters, soils, atmosphere and all divisions of the biosphere are welcomed, but these should not simply be of a monitoring nature unless the data are particularly innovative.