Radiation exposure due to radon, thoron and their progeny in different types of dwellings in two districts of Meghalaya, India.

IF 1.4 4区环境科学与生态学 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Isotopes in Environmental and Health Studies Pub Date : 2025-09-29 DOI:10.1080/10256016.2025.2559198

A Pyngrope, A Saxena, B K Sahoo

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Abstract

A survey on indoor radon, thoron and their progeny activity concentration has been carried out in two districts of Meghalaya, India, using the recently developed pin-hole dosimeter and DRPS/DTPS progeny sensors. Significant variation in these radionuclides has been observed amongst different house types and seasons of the year; responsible factors are discussed in detail. The mean observed concentration level of radon, thoron and their progeny are 63.7 ± 6, 65.1 ± 8, 24.8 ± 2 and 1.3 ± 0.1 Bq m^-3, respectively. These values are higher than the global average but lie within the prescribed limit. The estimated total annual effective dose is 2.07 mSv, which is within the permissible limit (3-10 mSv) as recommended by the International Commission on Radiological Protection (ICRP). Calculated values of radon and thoron equilibrium factors are, at par, with global findings. Positive but weak correlations between radon, thoron and their progeny concentrations have been observed.

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印度梅加拉亚邦两个地区不同类型住宅中氡、钍及其子代的辐射暴露。

利用最近研制的针孔剂量计和DRPS/DTPS子代传感器，在印度梅加拉亚邦的两个县对室内氡、钍及其子代活动浓度进行了调查。这些放射性核素在一年中的不同房屋类型和季节之间有显著差异；详细讨论了造成这种现象的因素。氡、钍及其子体的平均观测浓度分别为63.7±6、65.1±8、24.8±2和1.3±0.1 Bq m-3。这些数值高于全球平均值，但仍在规定的限制范围内。估计年总有效剂量为2.07 毫西弗，在国际放射防护委员会（ICRP）建议的允许限值（3-10 毫西弗）之内。氡和钍平衡因子的计算值与全球调查结果相同。在氡、钍及其子代浓度之间观察到正但弱的相关关系。

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

Isotopes in Environmental and Health Studies 环境科学-环境科学

CiteScore

2.80

自引率

7.70%

发文量

审稿时长

3.0 months

期刊介绍： Isotopes in Environmental and Health Studies provides a unique platform for stable isotope studies in geological and life sciences, with emphasis on ecology. The international journal publishes original research papers, review articles, short communications, and book reviews relating to the following topics: -variations in natural isotope abundance (isotope ecology, isotope biochemistry, isotope hydrology, isotope geology) -stable isotope tracer techniques to follow the fate of certain substances in soil, water, plants, animals and in the human body -isotope effects and tracer theory linked with mathematical modelling -isotope measurement methods and equipment with respect to environmental and health research -diagnostic stable isotope application in medicine and in health studies -environmental sources of ionizing radiation and its effects on all living matter