文献类型：期刊文献

英文题名：Preliminary investigation of PM1, PM2.5, PM10 and its metal elemental composition in tunnels at a subway station in Shanghai, China

作者：Qiao, Ting[1];Xiu, Guangli[1];Zheng, Yi[2];Yang, Jun[3];Wang, Lina[1];Yang, Jianming[4];Huang, Zhongsi[1]

机构：[1]E China Univ Sci & Technol, State Environm Protect Key Lab Risk Assessment &, Shanghai 200237, Peoples R China;[2]Shanghai Shentong Metro Grp Co Ltd, Ctr Tech, Shanghai 201103, Peoples R China;[3]Shanghai An He Environm Testing Tech Co Ltd, Shanghai 201611, Peoples R China;[4]Shanghai Int Theme Pk Co Ltd, Shanghai 201205, Peoples R China

年份：2015

卷号：41

起止页码：136

外文期刊名：TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT

收录：;EI(收录号：20154301428568);WOS:【SSCI(收录号:WOS:000366079900011)，SCI-EXPANDED(收录号:WOS:000366079900011)】；

基金：Acknowledge to Shanghai municipal education committee, for provision of research funding (12ZZ054). Thanks to personnel and equipment support for this research provided by Shanghai An-He Environmental Testing Technique Co., Ltd. Thanks to field sampling support offered by Technical Center of Shanghai Shentong Metro Group Co., Ltd.

语种：英文

外文关键词：Subway tunnel; Microclimate; Particulate matter; Particle screen door; Metal element

摘要：In this study, real-time monitoring campaigns were conducted in two tunnels (Line A and Line B) at a subway station in Shanghai, including temperature, relative humidity, PM-I, PM2.5 and PM10, in order to understand the climate and PM characteristics in the transportation microenvironment. In addition, collected floor dust particles in the tunnel were analyzed by ICP for their metal elemental composition. Strong correlations occurred between all PM levels and meteorological parameters in the tunnel of Line A (with platform screen doors), in comparison with the weak correlations between such parameters in the tunnel of Line B (without platform screen doors). PM2.5 and PM10 between peak hours and off-peak hours for both lines presented significant differences (p < 0.05), respectively. Nevertheless, PM1 showed a different pattern, with p > 0.05 for Line A and p <0.05 for Line B, respectively. In addition, statistical results concluded that PM had an evident weekly variation for both lines. Friday was the highest day of all particulate matters in monitoring periods for both lines. Ratios of PM1/PM10 and PM2.5/PM10 were high when trains were out of service and low when trains were in service. Relative abundance of metal elements detected from floor dust particles proved that floor dust particles in tunnels might be a major source of airborne PM in the subway microenvironments, with Fe as the most abundant metal element, followed by Ca, Al, Mg, Mn, Zn, Cu, Cr, Ni, Pb and Hg. (C) 2015 Elsevier Ltd. All rights reserved.