西安理工大学学报2018，Vol.34Issue(4)：415-421,7.DOI:10.19322/j.cnki.issn.1006-4710.2018.04.006
北京某地铁车站细颗粒物分布特性研究
Characteristics of PM2.5 distribution in a subway station in Beijing
摘要
Abstract
To get acquainted with the pollution condition of fine particle matter (PM2.5) in the metro environment, PM2.5distribution and impact factors have been investigated by using the onsite test results obtained from Songjiazhuang Subway Station, a complicated three-transfer metro station in Beijing.A series of time-continuous and multi-point measurement is conducted in both the hall and the platform of this station.The results show that PM2.5concentration in metro station is higher than that of the outdoors when outside PM2.5concentration is beneath the level of severe pollution.The PM2.5concentration in metro station presents some periodic changes, which is considered to be caused by the frequency of trains'intersection (the piston effect).According to the correlation analysis, a strong relationship is found between the inside and outside PM2.5concentrations, as well as the concentrations of PM2.5and PM10in station.It is clear that passenger flow, station temperature and humidity have no significant effect on the PM2.5concentration in the metro station.关键词
地铁车站/细颗粒物(PM2.5)/分布/影响因素Key words
subway station/PM2.5/concentration distribution/impact factor分类
建筑与水利引用本文复制引用
潘嵩,王洪伟,王新如,谷雅秀,裴斐..北京某地铁车站细颗粒物分布特性研究[J].西安理工大学学报,2018,34(4):415-421,7.基金项目
国家自然科学基金资助项目(51578011) （51578011）
国家自然科学基金重大资助项目(51590912) （51590912）
