2021年丹东市办公场所室内氡浓度及其影响因素分析  

Analysis of Indoor Radon Concentration and Its Influencing Factors in Dandong Office Space in 2021

作　　者：郑存德 ZHENG Cunde(Eastern Liaoning University,Dandong 118003,China;Liaoning Province Key Laboratory of Water Environment Radioactivity Early Warning and Monitoring Technology,Dandong,118003,China;Liaoning Province"High Quality Development of Marine Economy"University Collaborative Innovation Center,Dandong 118003,China)

机构地区：[1]辽东学院,丹东118003 [2]辽宁省水环境放射性预警监测技术重点实验室,丹东118003 [3]辽宁省“海洋经济高质量发展”高校协同创新中心,丹东118003

出　　处：《核电子学与探测技术》2023年第4期797-802,共6页Nuclear Electronics & Detection Technology

基　　金：辽宁省科技厅博士启动基金项目(20141128);2019辽宁省大学生创新创业训练计划项目;辽宁省教育厅科学研究项目(LNSJYT202016);辽东学院鸭绿江流域研究院开放课题(YLJ20220107)。

摘　　要：为明确丹东市办公场所室内氡活度浓度水平及其影响因素,并估算室内氡对公众所致年有效剂量是否对人体有潜在危害。选择丹东市42处办公场所,使用RAD7测氡仪对其不同楼层室内氡活度浓度进行测量,并计算室内氡及其子体年有效剂量。结果表明,丹东市内办公场所氡活度浓度的范围为4.17-113.29 Bq/m^(3),平均值为32.99 Bq/m^(3),符合GB/T 16146—2015《室内氡及其子体控制要求》,室内氡导致的年有效剂量为0.46 mSv。丹东市办公场所室内氡活度浓度处于安全范围。室内氡活度浓度随房屋建造年代的增加基本呈降低趋势;室内氡活度浓度随楼层的增高呈下降趋势;铺装地面的室内氡活度浓度低于未铺装地面的室内氡活度浓度;通风条件好可以显著降低室内氡活度浓度。In order to study the indoor radon concentration level and its influencing factors in office space,and estimate the annual effective dose of indoor radon to the public,in Dandong city.Determine whether there is potential harm to human body.42 office places were selected and their indoor radon concentration was measured by RAD7 radon meter on different floors.The results show that the radon concentration in Dandong office space is 4.17~113.29 Bq/m^(3),with an average value of 32.99 Bq/m^(3),which is lower than the requirements for indoor radon and its daughters control(GB/T 16146—2015);The annual effective dose of indoor radon to the public is 0.46 mSv,which is lower than the average annual effective dose of radon to the public reported by the United Nations Scientific Committee on the effects of atomic radiation of 1.20 mSv.The indoor radon concentration is safe in Dandong Office.Indoor radon concentration basically with the increase of house construction age;Indoor radon concentration decreases with the increase of floor;The indoor radon concentration of ceramic tile floor is lower than that of cement floor;Radon concentration in well ventilated rooms is lower than that in poorly ventilated rooms.

关 键 词：氡 办公场所 年有效剂量 丹东 

分 类 号：TL72[核科学技术—辐射防护及环境保护]