南昌市地铁车站内氡浓度水平调查分析  

Investigation and Analysis of Radon Concentrationin Subway Stations in Nanchang

作　　者：檀丽 曹发明 张嫦慧 陈以水 TAN Li;CAO Faming;ZHANG Changhui;CHEN Yishui(Jiangxi Institute of Occupational Disease Prevention and Treatment,330006,Nanchang,PRC;Nanchang Center for Health and Family Planning Education,330006,Nanchang,PRC)

机构地区：[1]江西省职业病防治研究院,南昌330006 [2]南昌市卫生和计划生育宣传教育中心,南昌330006

出　　处：《江西科学》2021年第5期816-819,共4页Jiangxi Science

基　　金：江西省卫生健康委科技项目(20204872)。

摘　　要：对南昌市地铁1号线和2号线车站内氡浓度水平进行监测,初步掌握南昌市地铁重点区域的氡浓度水平,并分析其对工作人员和公众人员带来的辐射危害。采用《环境空气中氡的标准检测方法》(GB/T14582—1993)中的径迹蚀刻法进行采样及测量,并根据《室内氡及其子体控制要求》(GB/T 16146—2015)中的公式进行相关人员年有效剂量评估。结果:南昌市地铁车站内氡浓度范围是8. 30~23. 72 Bq/m^(3),均值为14. 45 Bq/m^(3),监测结果均低于400 Bq/m3的参考水平。车控室、站台、客服中心不同类型监测点氡浓度水平差异无统计学意义(P> 0. 05)。1号线和2号线2条不同线路车站内氡浓度水平也无统计学意义(P> 0. 05)。地铁车站内氡所致的工作人员和公众的年有效剂量均低于标准规定的限值要求。南昌市地铁车站内氡对工作人员和公众的辐射危害在安全范围内。To monitor the radon concentration in the stations of line 1 and Line 2 of Nanchang subway,master the radon concentration level in the key areas of Nanchang Metro preliminarily and analyze the radiation hazard to workers and public.The method of track etching in GB/T14582—1993 was used to sample and measure radon in ambient air,the annual effective dose was evaluated according to the formula in GB/T 16146—2015.Results:The radon concentration ranges from 8.30 to 23.72 Bq/m^(3),with a mean of 14.45 Bq/m^(3),and the monitoring results are lower than the reference level of 400 Bq/m3.There was no significant difference in radon concentration among different monitoring points(P>0.05).The radon concentration levels of two different lines of line 1 and line 2 were not statistically significant(P>0.05).The annual effective dose of workers and public caused by radon in subway station is lower than the limit value.The radiation hazard of radon to workers and public in Nanchang subway station is within the safe range.

关 键 词：地铁 氡浓度水平 监测 

分 类 号：X591[环境科学与工程—环境工程]