成都地铁氡浓度水平调查研究

辐射防护 ›› 2024, Vol. 44 ›› Issue (4): 367-373.

成都地铁氡浓度水平调查研究

徐立鹏^1,2,3, 陈立², 王先良¹, 黎杰¹, 彭毅¹, 刘敏^1,3, 李春阳², 杨强^1,3, 谷懿³, 李健颖³

1.放射肿瘤学四川省重点实验室四川省肿瘤临床医学研究中心四川省肿瘤医院·研究所四川省癌症防治中心电子科技大学附属肿瘤医院,成都 610041;
2.四川省辐射环境管理监测中心站,成都 611139;
3.地学核技术四川省重点实验室,成都理工大学,成都 610059

收稿日期:2023-12-28 出版日期:2024-07-20 发布日期:2024-08-05
通讯作者: 刘敏。E-mail: liumin20211107@163.com
作者简介:徐立鹏(1987—),男, 2010年毕业于成都理工大学核工程与核技术专业,获工学学士学位,2013年毕业于成都理工大学核技术及应用专业,获工学硕士学位,2020年毕业于成都理工大学核技术及应用专业,获工学博士学位,高级工程师。E-mail: xulipeng-cdut@163.com
基金资助:
国家自然科学基金国家重大科研仪器研制项目(42127807);四川省自然科学基金项目(2023NSFSC0711);四川省自然科学基金项目(23NSFSCC0116);四川省肿瘤医院优秀青年基金项目(YB2021030)。

Investigation on radon concentration in Chengdu metro

XU Lipeng^1,2,3, CHEN Li², WANG Xianliang¹, LI Jie¹, PENG Yi¹, LIU Min^1,3, LI Chunyang², YANG Qiang^1,3, GU Yi³, LI Jianying³

1. Radiation Oncology Key Laboratory of Sichuan Province, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China,Chengdu 610041;
2. Sichuan Radiation Environment Managing & Monitoring Center,Chengdu 611139;
3. Key Laboratory of Application Nuclear Technology of Sichuan Province, Chengdu 610059

Received:2023-12-28 Online:2024-07-20 Published:2024-08-05

摘要/Abstract

摘要： 为掌握成都地铁环境空气中氡浓度水平,采用瞬时法和累积法对31个地铁站点开展氡浓度水平调查。结果表明:成都地铁279个测量点位的瞬时测量氡浓度范围为(9.1～39.0)Bq/m³,均值(19.7±7.8)Bq/m³;累积测量地铁站点124个测量点位的氡浓度范围为(9.7～32.5)Bq/m³,均值(18.4±4.3)Bq/m³,比较得出成都地铁氡浓度水平显著低于标准规定的参考水平。研究发现地铁车厢内的氡浓度均低于对应线路地铁站点,二者正相关性达0.84(P＜0.05);上层安检处的氡浓度均低于对应站点低层站台,二者正相关性达0.81(P＜0.05);非密闭场所售票厅的氡浓度均低于对应站点同层密闭场所控制室。分析得出,通风对降低地铁氡浓度水平有效果。估算得出地铁环境空气中氡及其子体对地铁工作人员及乘客所致年有效剂量分别为0.15 mSv和0.05 mSv。

关键词: 成都地铁, 氡浓度, 累积测量, 瞬时测量, 有效剂量

Abstract: To understand the radon concentration levels in the Chengdu metro environment, instantaneous methods and cumulative methods were used to conduct an investigation to the radon concentration levels at 31 subway stations. The results showed that the radon concentration of 279 measuring points in Chengdu metro as measured instantaneously ranged from 9.1 to 39.0 Bq/m³, with an average of (19.7±7.8) Bq/m³. The radon concentration of 124 measuring points at the subway stations as measured cumulatively twice ranged from 9.7 to 32.5 Bq/m³, with an average of (18.4±4.3) Bq/m³. The radon concentration level was significantly lower than the standard reference value. It was found that the radon concentrations inside the subway cars were lower than that at the subway stations on the corresponding line, with a positive correlation reaching 0.84 (P<0.05), and the radon concentrations at the upper security inspection points were lower than that at the lower platforms of the corresponding line, with a positive correlation reaching 0.81 (P<0.05). The radon concentrations in the open ticket halls were lower than that in the control rooms in the enclosed area on the same floor of the corresponding line. Analysis revealed that ventilation is effective in reducing the level of radon concentration in the subway. The annual effective dose of radon and its progeny in the ambient air of the Chengdu metro to the subway staff and passengers is estimated to be 0.15 mSv and 0.05 mSv respectively.

Key words: Chengdu metro, radon concentrations, cumulative measurement, instantaneous measurement, effective dose

中图分类号:

R144

徐立鹏, 陈立, 王先良, 黎杰, 彭毅, 刘敏, 李春阳, 杨强, 谷懿, 李健颖. 成都地铁氡浓度水平调查研究[J]. 辐射防护, 2024, 44(4): 367-373.

XU Lipeng, CHEN Li, WANG Xianliang, LI Jie, PENG Yi, LIU Min, LI Chunyang, YANG Qiang, GU Yi, LI Jianying. Investigation on radon concentration in Chengdu metro[J]. RADIATION PROTECTION, 2024, 44(4): 367-373.

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