Assessment of annual effective doses from indoor radon and thoron in Doi Lo, Chiang Mai, Thailand.

IF 0.8 4区环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES

Radiation protection dosimetry Pub Date : 2024-11-13 DOI:10.1093/rpd/ncae130

Tarika Thumvijit, Siriprapa Somboon, Monruedee Tapanya, Kewalin Ruktinnakorn, Chutima Kranrod, Shinji Tokonami, Supitcha Chanyotha, Sompong Sriburee

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Abstract

This study aimed to determine the annual effective dose resulting from radon and thoron progeny inhalation. The levels of radon, thoron, and progeny were assessed in residences situated in the Doi Lo region of Chiang Mai, Thailand. Indoor radon and thoron concentrations were detected using passive discriminative detectors. Using a progeny deposition rate detector, this study evaluates radon and thoron progeny [equilibrium-equivalent radon concentration (EERC) for radon and equilibrium-equivalent thoron concentration (EETC) for thoron]. Data were collected from 44 dwellings between March and May 2020. The results found that indoor radon concentrations ranged from 17 to 118 Bq m-3, while thoron concentrations ranged from 12 to 72 Bq m-3. The radon progeny (EERC) ranged from 4 to 173 Bq m-3, whereas thoron progeny (EETC) ranged from 1 to 15 Bq m-3. The total annual effective dose received from radon and thoron progeny inhalation varied from 0.5 to 5 mSv y-1.

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泰国清迈Doi Lo地区室内氡和钍的年度有效剂量评估。

本研究旨在确定每年因吸入氡和钍原而产生的有效剂量。对位于泰国清迈Doi Lo地区的住宅进行了氡、钍和原氡含量评估。室内氡和钍的浓度是通过被动鉴别探测器检测到的。本研究使用子代沉积率探测器评估了氡和钍的子代[氡的平衡当量氡浓度（EERC）和钍的平衡当量钍浓度（EETC）]。在 2020 年 3 月至 5 月期间，从 44 个住宅收集了数据。结果发现，室内氡浓度介于 17 到 118 Bq m-3 之间，而钍浓度介于 12 到 72 Bq m-3 之间。氡后代（EERC）介于 4 到 173 Bq m-3 之间，而钍后代（EETC）介于 1 到 15 Bq m-3 之间。吸入氡和钍原的年总有效剂量从 0.5 到 5 mSv y-1 不等。

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

Radiation protection dosimetry 环境科学-公共卫生、环境卫生与职业卫生

CiteScore

1.40

自引率

10.00%

发文量

223

审稿时长

6-12 weeks

期刊介绍： Radiation Protection Dosimetry covers all aspects of personal and environmental dosimetry and monitoring, for both ionising and non-ionising radiations. This includes biological aspects, physical concepts, biophysical dosimetry, external and internal personal dosimetry and monitoring, environmental and workplace monitoring, accident dosimetry, and dosimetry related to the protection of patients. Particular emphasis is placed on papers covering the fundamentals of dosimetry; units, radiation quantities and conversion factors. Papers covering archaeological dating are included only if the fundamental measurement method or technique, such as thermoluminescence, has direct application to personal dosimetry measurements. Papers covering the dosimetric aspects of radon or other naturally occurring radioactive materials and low level radiation are included. Animal experiments and ecological sample measurements are not included unless there is a significant relevant content reason.