Assessment of natural radioactivity and radiological hazards in rocks from Thiruvananthapuram, Kerala

IF 1.5 3区化学 Q3 CHEMISTRY, ANALYTICAL

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2024-10-08 DOI:10.1007/s10967-024-09720-2

Suji M., G. Shanthi

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引用次数: 0

Abstract

This study investigates the natural radioactivity levels in Thiruvananthapuram, Kerala, focusing on uranium (²³⁸U), thorium (²³²Th), and potassium (⁴⁰K) concentrations in rock samples collected from various locations. Rock samples were collected and analyzed using gamma ray spectroscopy with NaI(Tl) detectors to determine activity concentrations and radiological parameters. The results reveal varying concentrations of ²³⁸U (5.05 to 200.31 ± 11.85 Bq kg⁻¹), ²³²Th (5.04 to 632.73 ± 37.44 Bq kg⁻¹) and ⁴⁰K (556.89 ± 3 2.95 to 2072.2 ± 122.61 Bq kg⁻¹) with mean values of 49.12 Bq kg⁻¹, 257.71 Bq kg⁻¹, and 1451.56 Bq kg⁻¹ respectively. Radiological parameters (Ra_eq, D_R, AED, H_(in_,_out), GI, RLI, ELCR_{(in, out)}, AUI, AGEDE) were also calculated. Correlation and ratio analyses further highlight relationships between uranium, thorium, and potassium concentrations, revealing their geological associations and implications for radiological hazards. This study underscores the importance of monitoring natural radioactivity in urban environments to mitigate potential health impacts and ensure public safety.

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喀拉拉邦Thiruvananthapuram岩石的天然放射性和放射性危害评估

本研究调查了喀拉拉邦Thiruvananthapuram的天然放射性水平，重点研究了从不同地点收集的岩石样本中的铀（238U）、钍（232Th）和钾（40K）浓度。岩石样品采集和分析使用伽马射线能谱与NaI（Tl）探测器，以确定活性浓度和放射性参数。结果显示，238U（5.05 ~ 200.31±11.85 Bq kg−1）、232Th（5.04 ~ 632.73±37.44 Bq kg−1）和40K（556.89±3.95 ~ 2072.2±122.61 Bq kg−1）的浓度变化，平均值分别为49.12、257.71和1451.56 Bq kg−1。计算放射学参数（Raeq、DR、AED、H（in、out）、GI、RLI、ELCR（in、out）、AUI、AGEDE）。相关性和比率分析进一步强调了铀、钍和钾浓度之间的关系，揭示了它们的地质关联和对辐射危害的影响。这项研究强调了监测城市环境中的天然放射性对于减轻潜在的健康影响和确保公共安全的重要性。

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 Radioanalytical and Nuclear Chemistry 化学-分析化学

CiteScore

2.80

自引率

18.80%

发文量

504

审稿时长

2.2 months

期刊介绍： An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.