English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/218791
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

Exposure to airborne particulate matter in the subway system

AuthorsMartins, Vânia ; Moreno, Teresa ; Minguillón, María Cruz ; Amato, Fulvio ; de Miguel, E.; Capdevila, M.; Querol, Xavier
Issue Date2015
CitationScience of the Total Environment 511: 711- 722 (2015)
Abstract© 2014 The Authors. The Barcelona subway system comprises eight subway lines, at different depths, with different tunnel dimensions, station designs and train frequencies. An extensive measurement campaign was performed in this subway system in order to characterise the airborne particulate matter (PM) measuring its concentration and investigating its variability, both inside trains and on platforms, in two different seasonal periods (warmer and colder), to better understand the main factors controlling it, and therefore the way to improve air quality. The majority of PM in the underground stations is generated within the subway system, due to abrasion and wear of rail tracks, wheels and braking pads caused during the motion of the trains. Substantial variation in average PM concentrations between underground stations was observed, which might be associated to different ventilation and air conditioning systems, characteristics/design of each station and variations in the train frequency. Average PM2.5 concentrations on the platforms in the subway operating hours ranged from 20 to 51 and from 41 to 91μgm-3 in the warmer and colder period, respectively, mainly related to the seasonal changes in the subway ventilation systems. The new subway lines with platform screen doors showed PM2.5 concentrations lower than those in the conventional system, which is probably attributable not only to the more advanced ventilation setup, but also to the lower train frequency and the design of the stations. PM concentrations inside the trains were generally lower than those on the platforms, which is attributable to the air conditioning systems operating inside the trains, which are equipped with air filters. This study allows the analysis and quantification of the impact of different ventilation settings on air quality, which provides an improvement on the knowledge for the general understanding and good management of air quality in the subway system.
Publisher version (URL)http://dx.doi.org/10.1016/j.scitotenv.2014.12.013
URIhttp://hdl.handle.net/10261/218791
DOIhttp://dx.doi.org/10.1016/j.scitotenv.2014.12.013
Identifiersdoi: 10.1016/j.scitotenv.2014.12.013
issn: 1879-1026
Appears in Collections:(IDAEA) Artículos
Files in This Item:
File Description SizeFormat 
1-s2.0-S004896971401715X-main.pdf1,75 MBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.