In situ gamma ray spectrometry for environmental monitoring: Full Spectrum Analysis and dose assessment

IF 1.6 3区化学 Q3 CHEMISTRY, ANALYTICAL

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-09-01 DOI:10.1007/s10967-025-10359-w

Thi Yen Hong Huynh, Huu Ngan Thy Truong, Thanh Thao Tran, Ngoc Ba Vu

引用次数: 0

Abstract

This study developed and validated an in situ Full Spectrum Analysis (FSA) method using a NaI(Tl) detector for environmental radiation monitoring in Ho Chi Minh City. Mean activity concentrations of ²³⁸U (21.8 Bq kg⁻¹) and ²³²Th (33.8 Bq kg⁻¹) were near or below global averages, while ⁴⁰K (57.8 Bq kg⁻¹) was notably depleted. Anthropogenic ¹³⁷Cs was negligible. Derived radiological hazard indices, including an average outdoor annual effective dose of 0.04 mSv y⁻¹, were well within international safety limits. The findings confirm the method’s utility and indicate a low terrestrial gamma radiation risk in the surveyed urban areas.

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环境监测用现场伽马射线能谱法：全谱分析和剂量评估

本研究开发并验证了一种使用NaI（Tl）探测器的现场全谱分析（FSA）方法，用于胡志明市的环境辐射监测。238U （21.8 Bq kg - 1）和232Th （33.8 Bq kg - 1）的平均活度浓度接近或低于全球平均水平，而40K （57.8 Bq kg - 1）的活度浓度明显减少。人为的137Cs可以忽略不计。衍生的辐射危害指数，包括室外年平均有效剂量0.04毫西弗（毒血症），完全在国际安全限度之内。研究结果证实了该方法的实用性，并表明在被调查的城市地区地面伽马辐射风险较低。

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.