Measurement of natural radioactivity and assessment of radiological hazard indices in soil from Tirunelveli District, Tamil Nadu, India with statistical approach

T. Krishnamoorthi , Satyanarayan Bramha , S. Chandrasekaran , R. Ravichandaran , S. Sivakumar , R. Ravisankar
{"title":"Measurement of natural radioactivity and assessment of radiological hazard indices in soil from Tirunelveli District, Tamil Nadu, India with statistical approach","authors":"T. Krishnamoorthi ,&nbsp;Satyanarayan Bramha ,&nbsp;S. Chandrasekaran ,&nbsp;R. Ravichandaran ,&nbsp;S. Sivakumar ,&nbsp;R. Ravisankar","doi":"10.1016/j.nucana.2025.100156","DOIUrl":null,"url":null,"abstract":"<div><div>The activity concentrations of naturally occurring radionuclides <sup>238</sup>U, <sup>232</sup>Th, and <sup>40</sup>K were determined in 31 soil samples collected from the Tirunelveli District of Tamil Nadu using grid sampling method. Gamma-ray spectrometry was applied using NaI(Tl) detector and a PC-based MCA. The mean radioactivity concentrations of <sup>238</sup>U, <sup>232</sup>Th, and <sup>40</sup>K were found to be 12.98 Bq.kg<sup>−1,</sup> 162.89 Bq.kg<sup>−1</sup> and 453.04 Bq.kg<sup>−1</sup>, respectively. The spatial map of the radionuclides was drawn and is discussed. The radiological hazards associated with soils were determined using radium equivalent activity (Ra<sub>eq</sub>), annual gonadal dose equivalent (AGDE), activity utilization index (AUI), internal hazard index (H<sub>in</sub>) external hazard index (H<sub>ex</sub>) and gamma representative level index (I<sub>γ</sub>), were calculated. Results were discussed and compared with the internationally recommended approved values. Statistical method was used to determine the natural associations between samples and variables. This work may provide baseline data for future soil radioactive environmental monitoring and the results of the study can serve as a reference for future radiological assessments.</div></div>","PeriodicalId":100965,"journal":{"name":"Nuclear Analysis","volume":"4 1","pages":"Article 100156"},"PeriodicalIF":0.0000,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Analysis","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2773183925000059","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

The activity concentrations of naturally occurring radionuclides 238U, 232Th, and 40K were determined in 31 soil samples collected from the Tirunelveli District of Tamil Nadu using grid sampling method. Gamma-ray spectrometry was applied using NaI(Tl) detector and a PC-based MCA. The mean radioactivity concentrations of 238U, 232Th, and 40K were found to be 12.98 Bq.kg−1, 162.89 Bq.kg−1 and 453.04 Bq.kg−1, respectively. The spatial map of the radionuclides was drawn and is discussed. The radiological hazards associated with soils were determined using radium equivalent activity (Raeq), annual gonadal dose equivalent (AGDE), activity utilization index (AUI), internal hazard index (Hin) external hazard index (Hex) and gamma representative level index (Iγ), were calculated. Results were discussed and compared with the internationally recommended approved values. Statistical method was used to determine the natural associations between samples and variables. This work may provide baseline data for future soil radioactive environmental monitoring and the results of the study can serve as a reference for future radiological assessments.
印度泰米尔纳德邦Tirunelveli地区土壤天然放射性的测量和放射性危害指数的统计方法评估
采用网格采样法测定了泰米尔纳德邦Tirunelveli地区31份土壤样品中天然存在的放射性核素238U、232Th和40K的活性浓度。伽玛射线能谱法采用NaI(Tl)检测器和基于pc的MCA。238U、232Th和40K的平均放射性浓度为12.98 Bq。kg−1,162.89 Bq。kg−1和453.04 Bq。公斤−1,分别。绘制了放射性核素的空间图,并进行了讨论。采用镭当量活度(Raeq)、年性腺剂量当量(AGDE)、活度利用指数(AUI)、内害指数(Hin)、外害指数(Hex)和γ代表性水平指数(Iγ)测定土壤放射性危害。结果进行了讨论,并与国际上推荐的认可值进行了比较。采用统计学方法确定样本与变量之间的自然关联。本工作可为今后土壤放射性环境监测提供基线数据,研究结果可为今后土壤放射性评价提供参考。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
CiteScore
1.70
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信