The present investigation has been carried out in the copper mineralized region of Jharkhand, India. Apart from the natural deposit of copper minerals, which is found along with uranium in this region, different industrial sites of copper were accounted for, in the study. The integrated radon measurement technique has been used with dosimeter deployment interval of 90 days. The indoor 222Rn activity concentration varied at different locations from 58.4 to 100.7Bqm-3\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$100.7\,{\text{Bq}}\,{\text{m}}^{ - 3}$$\end{document} with an average of 79.8±14.5Bqm-3\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$79.8 \pm 14.5 \,{\text{Bq}}\,{\text{m}}^{ - 3}$$\end{document}. In the outdoor environment, annual average 222Rn activity concentration varies from 36.5 to 75.8Bqm-3\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$75.8 \,{\text{Bq}}\,{\text{m}}^{ - 3}$$\end{document} with an average of 57.9±14.0Bqm-3\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$57.9 \pm 14.0 \,{\text{Bq}}\,{\text{m}}^{ - 3}$$\end{document}. The corresponding annual inhalation dose due to indoor and outdoor 222Rn activity concentration to the inhabitants of the region has been worked out as 1.95mSvyear-1\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$1.95\,{\text{mSv}}\,{\text{year}}^{ - 1}$$\end{document} to 3.28mSvyear-1\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$3.28\,{\text{mSv}}\,{\text{year}}^{ - 1}$$\end{document} respectively with a mean of 2.60±0.38mSvyear-1\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$2.60 \pm 0.38\,{\text{mSv}}\,{\text{year}}^{ - 1}$$\end{document}.

中文翻译：

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贾坎德邦 Singhbhum 铜带居民的 222Rn 浓度水平和吸入暴露评估

目前的调查是在印度贾坎德邦的铜矿化地区进行的。除了在该地区与铀一起发现的铜矿物的天然矿床外，研究中还考虑了不同的铜工业场所。集成氡测量技术已被使用，剂量计部署间隔为 90 天。室内 222Rn 活性浓度在 58.4 到 100.7Bqm-3\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \ usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$100.7\,{\text{Bq}}\,{\text{m}}^{ - 3}$ $\end{document} 平均为 79.8±14。5Bqm-3\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\ oddsidemargin}{-69pt} \begin{document}$$79.8 \pm 14.5 \,{\text{Bq}}\,{\text{m}}^{ - 3}$$\end{document}。在室外环境中，年平均 222Rn 活动浓度从 36.5 到 75.8Bqm-3\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy } \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$75.8 \,{\text{Bq}}\,{\text{m}}^{ - 3 }$$\end{document} 平均为 57.9±14。0Bqm-3\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\ oddsidemargin}{-69pt} \begin{document}$$57.9 \pm 14.0 \,{\text{Bq}}\,{\text{m}}^{ - 3}$$\end{document}。由于室内和室外 222Rn 活动浓度对该地区居民的相应年吸入剂量已计算为 1.95mSvyear-1\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts } \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$1.95\,{\text{mSv}}\,{ \text{year}}^{ - 1}$$\end{document} 到 3。