Assessing radiation hazards associated with natural radioactivity in building materials in Ho Chi Minh City, Vietnam

IF 0.9 4区工程技术 Q3 NUCLEAR SCIENCE & TECHNOLOGY

Nuclear Technology & Radiation Protection Pub Date : 2023-01-01 DOI:10.2298/ntrp2301030v

L. Vuong, H. Chuong, Lam Nhat, H. Tam, T. Thanh, V. Minh, Le Hung, P. Ho, C. Tao

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引用次数: 0

Abstract

This study is aimed at assessing radiation hazards associated with natural radioactivity in common building materials used in Ho Chi Minh City, Vietnam. Thirty-six samples from eighteen types of building materials were collected to measure activity concentrations using the gross alpha/beta counting system and gamma-ray spectrometry. The gross alpha and gross beta activity concentrations ranged from 94.7 ? 31.3 to 1045.1 ? 112.3 Bqkg-1 and 104.9 ? 4.7 to 834.4 ? 37.1 Bqkg-1, respectively. In addition, the activity concentrations of 226Ra, 232Th, and 40K were also determined, which ranged from 4.1 ? 0.1 to 53.5 ? 0.4 Bqkg-1, 5.7 ? 0.1 to 83.6 ? 0.8 Bqkg-1, and 14.9 ? 0.8 to 664.9 ? 10.6 Bqkg-1, respectively. The indices including radium equivalent activity, external and internal radiation hazard, gamma and alpha indices, activity utilization index, and annual effective dose, were calculated to evaluate the radiological hazards of natural radioactivity. The results showed that these indices were below the recommended safety limits for most investigated samples except six brick samples, whose activity utilization indexes are slightly higher than the safety limit. Even so, all annual effective doses of the samples were found to be below the world average.

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评估越南胡志明市建筑材料中与天然放射性有关的辐射危害

本研究旨在评估越南胡志明市使用的普通建筑材料中与天然放射性有关的辐射危害。从18种建筑材料中收集了36个样品，使用总α / β计数系统和伽马射线能谱法测量活性浓度。总α和总β活性浓度从94.7 ?31.3到1045.1 ?112.3 Bqkg-1和104.9 ?4.7到834.4 ?37.1 Bqkg-1。此外，还测定了226Ra、232Th和40K的活度浓度，其范围为4.1 ?0.1到53.5 ?0.4 Bqkg-1, 5.7 ?0.1到83.6 ?0.8 Bqkg-1和14.9 ?0.8到664.9 ?10.6 Bqkg-1。计算了镭当量活度、内外辐射危害、γ和α指数、活度利用指数和年有效剂量等指标，评价了天然放射性的辐射危害。结果表明，除6个砖样活性利用指标略高于安全限值外，其余样品活性利用指标均低于推荐安全限值。即便如此，所有样本的年有效剂量都被发现低于世界平均水平。

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

Nuclear Technology & Radiation Protection NUCLEAR SCIENCE & TECHNOLOGY-

CiteScore

2.00

自引率

41.70%

发文量

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.