马来西亚雪兰莪州泥炭土中天然放射性核素226Ra、232Th和40K的放射性浓度和转移因子

IF 0.9 4区 工程技术 Q3 NUCLEAR SCIENCE & TECHNOLOGY Nuclear Technology & Radiation Protection Pub Date : 2022-01-01 DOI:10.2298/ntrp2201057m
Hariandra Muthu, Ramesh Kasi, R. Subramaniam, Shahid Bashir
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引用次数: 0

摘要

研究了蔬菜和泥炭土中天然存在的放射性核素的活性浓度,以确定从巴生雪兰莪农场获得的放射性核素从土壤到蔬菜的转移因子。结果表明:蔬菜土壤中226Ra、232Th和40K的活性浓度范围分别为2.72 ~ 46.54 Bqkg-1、9.01 ~ 54.84 Bqkg-1和19.22 ~ 477.76 Bqkg-1。各蔬菜样品中226Ra、232Th和40K的活性浓度分别为0.41 ~ 3.41 Bqkg-1、0.02 ~ 3.56 Bqkg-1和16.22 ~ 317.49 Bqkg-1。226Ra、232Th和40K从土壤到植物的转移因子分别在0.01 ~ 0.67、0.00 ~ 0.17和0.26 ~ 2.52之间。放射性核素40K在大多数蔬菜中的传递因子值最高,尤其是在水果类蔬菜中,而放射性核素232Th在所有蔬菜中的传递因子值最低。将获得的结果与全球公认的可接受水平进行比较。40K的传递因子值大于豆类和水果类蔬菜中的1,在其他涉及热带植物的研究中也显示出类似的值,而226Ra的传递因子值比热带植物数据中报道的值高15倍。
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Radioactivity concentration and transfer factors of natural radionuclides 226Ra, 232Th, and 40K from peat soil to vegetables in Selangor, Malaysia
The activity concentrations of naturally occurring radionuclides in vegetables and peat soil were investigated to determine the transfer factors of radionuclides from soil to vegetables obtained from farms in Klang Selangor. The results showed that the activity concentration ranges for 226Ra, 232Th, and 40K in the soil of the vegetable were 2.72-46.54 Bqkg-1, 9.01-54.84 Bqkg-1, and 19.22-477.76 Bqkg-1, respectively. The activity concentration ranges for 226Ra, 232Th, and 40K in various vegetable samples were 0.41-3.41 Bqkg-1, 0.02-3.56 Bqkg-1, and 16.22-317.49 Bqkg-1, respectively. The transfer factors from soil-to-plant for 226Ra, 232Th, and 40K were in the ranges of 0.01-0.67, 0.00-0.17, and 0.26-2.52, respectively. Radionuclide 40K has the highest transfer factor value in most vegetables, especially in the fruit type vegetable, and 232Th was found to have the lowest transfer factor value in all vegetables. The acquired results were compared to the levels that are globally recognized as acceptable. The transfer factor value of 40K was greater than 1 found in beans and fruit type vegetables, showing a similar value in other studies involving tropical plants, while transfer factor value for 226Ra was 15 times higher than the value reported in the data for tropical plants.
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来源期刊
Nuclear Technology & Radiation Protection
Nuclear Technology & Radiation Protection NUCLEAR SCIENCE & TECHNOLOGY-
CiteScore
2.00
自引率
41.70%
发文量
10
审稿时长
6-12 weeks
期刊介绍: Nuclear Technology & Radiation Protection is an international scientific journal covering the wide range of disciplines involved in nuclear science and technology as well as in the field of radiation protection. The journal is open for scientific papers, short papers, review articles, and technical papers dealing with nuclear power, research reactors, accelerators, nuclear materials, waste management, radiation measurements, and environmental problems. However, basic reactor physics and design, particle and radiation transport theory, and development of numerical methods and codes will also be important aspects of the editorial policy.
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