| The status quo of radon concentrations and mitigation measures in underground working places of China |
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| 作者姓名： | 李晓燕 郑宝山 王燕 王学 |
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| 作者单位： | Institute of Geochemistry，Chinese Academy of Sciences，Guiyang 550002，China，Graduate School of the Chinese Academy of Sciences，Beijing 100039，China，Institute of Geochemistry，Chinese Academy of Sciences，Guiyang 550002，China，Institute of Geochemistry，Chinese Academy of Sciences，Guiyang 550002，China，Graduate School of the Chinese Academy of Sciences，Beijing 100039，China，Institute of Geochemistry，Chinese Academy of Sciences，Guiyang 550002，China |
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| 摘 要： | 1Introduction Radonisaradioactivegasarisingfromtheurani umdecaychain,andisthelargestsinglesourceofra diationexposuretothepopulation(Fovtetal.,1999).Highradonexposureshavebeenshownto causelungcancer(JonMiles,1998),anditiscom monlybelievedthatthegreatertheexposureofradon radiation,thegreatertheriskofdevelopinglungcanc er(YangWenjieetal.,1999).Theairradoncomes mainlyfromundergroundsoilandconstructionmateri als.Ingeneral,222Rnhasthehighestlevelinthebase mentsandundergroundspacesthatareincontact…
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| 关 键 词： | 氡 中国 季节变化 铀 致癌性 环境影响 |
The status quo of radon concentrations and mitigation measures in underground working places of China |
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| Xiaoyan Li,Baoshan Zheng,Yan Wang,Xue Wang.The status quo of radon concentrations and mitigation measures in underground working places of China[J].Chinese Journal of Geochemistry,2005,24(4):386-390. |
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| Authors: | Xiaoyan Li Baoshan Zheng Yan Wang Xue Wang |
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| Institution: | (1) Institute of Geochemistry, Chinese Academy of Sciences, 550002 Guiyang, China;(2) Graduate School of the Chinese Academy of Sciences, 100039 Beijing, China |
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| Abstract: | By using solid-state nuclear detectors, the air radon concentrations at 87 underground working places were measured during spring, summer and winter, respectively. The survey covered 23 cities whose annual radon concentrations range from 14.9 to 246.4 Bq·m -3 with an overall arithmetic mean value of 106.7 Bq·m -3. The average annual effective dose received by people working in these underground working places was 1.6 mSv, hence the lifetime fatality risk was 1.2×10 -4. Fujian Province had the highest radon level during the survey. It is better to reduce the radon concentration heavily in summer because of higher radon concentration than in winter. |
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| Keywords: | underground working place SSNTD'S seasonal variation distribution radon |
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