摘要
为了评估地铁站台电磁环境下工作人员和乘客的安全性,选取某条正在运行的地铁线路中的高架和地下两个地铁站台的电磁暴露为研究对象,站台电磁暴露源的选取具有一定的代表性,通过场强仪和频谱仪现场测量获取信号强度,得到地铁站台候车区域典型位置电场强度分布。结果表明:地铁站台主要电磁辐射源现场测量峰值频率在869～2 613 MHz内,地下站台电场强度测量值为0.010～0.044 V/m,高架站台电场强度为0.009～0.098 V/m,均远低于国际非电离辐射防护委员会制定标准中的职业和公众电磁暴露导出限值,说明地铁站台电磁环境对工作人员和乘客不会构成健康风险。
This study evaluates the electromagnetic exposure safety of staff and passengers on subway platforms.Specifically,to identify electromagnetic exposure at typical waiting areas on elevated and underground subway platforms in operation,this study employed electric field-strength and spectrum analyzers to measure the signal power and e-field strength at typical waiting areas on subway platforms,and representative sources of radiation were selected.The results revealed that the peak measuring frequency from the main electromagnetic radiation source of subway platforms was in the range of 869~2 613 MHz.In addition,the e-field strength of the underground and elevated platforms was 0.010~0.044 and 0.009~0.098 V/m,respectively,which were far less than the reference levels defined by the International Commission on Non-Ionizing Radiation Protection guidelines for occupational and general public exposure.Thus,this study shows that the electromagnetic environment of a subway platform is not harmful to the health of subway staff and passengers.
作者
李瑾
逯迈
周文颖
张启
LI Jin;LU Mai;ZHOU Wenying;ZHANG Qi(Key Laboratory of Opt-Electronic Technology and Intelligent Control,Ministry of Education,Lanzhou Jiaotong University,Lanzhou 730070,China)
出处
《辐射研究与辐射工艺学报》
CAS
CSCD
2019年第2期50-57,共8页
Journal of Radiation Research and Radiation Processing
基金
国家自然科学基金项目(51867014
51567015
61701208)
兰州交通大学青年科学基金项目(2015033)资助~~
关键词
地铁站台
电磁暴露
实验测量
安全评估
Subway platform
Electromagnetic exposure
Experimental measurements
Safety evaluation
