西安地铁一、二号线环境空气品质调查分析  

Investigation and Analysis on IAQ of Metro Line Ⅰ and Ⅱ in Xi'an

作　　者：樊越胜[1] 左甜甜[1] 赵飞龙[1] 冯丽[2] 

机构地区：[1]西安建筑科技大学环境与市政工程学院 [2]西安理工大学基建处

出　　处：《建筑热能通风空调》2016年第7期40-43,共4页Building Energy & Environment

基　　金：陕西省教育厅专项科研项目(11JK0943)

摘　　要：本文对西安地铁已投入运营的一、二号线各车站的站台、站厅、车厢内PM10、PM2.5、CO2、TVOC及氡浓度进行监测。结果表明,现有的机械通风系统可以较好地控制地铁环境中的颗粒物、CO2和氡的浓度,但是对于运行初期环境中的TVOC,通风换气量不够,浓度普遍超标。两条线站厅、站台和车厢的PM10浓度均未超标;二号线个别站点站台PM2.5平均浓度不同程度超标。两条线站台、站厅CO2平均浓度最高值均出现在人流密度较高的站点。一号线站台、站厅、车厢TVOC浓度普遍超标,二号线只有车厢内超标。两条线的氡浓度均未超标,但站台高于站厅。相关性分析表明,站台PM10浓度与室外相关性较强,而站台和车厢内PM2.5浓度与室外相关性均较弱。The concentration of PM10, PM2.5, CO2, TVOC and Radon in station hall, platform and carriage were monitored both on metro line Ⅰ and Ⅱ in Xi＇an. Result showed that the concentrations of particles, CO2 and Rn could be controlled under the standard values by the existing mechanical ventilation system, but the concentration of TVOC generally exceeded the standard value due to the inadequate ventilation rate at the beginning of operation in subway. The concentrations of PM10 in the station hall, platform and carriage of two lines were both under the standard value; and in some individual platforms of line Ⅱ, the PM2.5 concentration were exceeded the standard value. The highest concentration of CO2 in station hall, platform of two lines were both occurred in high flow density site. The TVOC concentration in station hall, platform and carriage of line Ⅰ were both exceeded the standard value, while only in carriage of line Ⅱ . The radon concentrations of two lines were under the standard value, but the concentration in platform was higher than in station hall. Analysis on correlation indicated that the PM10 showed a stronger correlation with outdoor environment, while PM2.5 showed a weaker correlation in platform and carriages.

关 键 词：地铁 空气质量 监测 

分 类 号：U231.5[交通运输工程—道路与铁道工程] X51[环境科学与工程—环境工程]