Concentration, composition and exposure risk assessment of particulate matter with different particle sizes in subway stations

Particle composition and risk assessment of their exposure in a subway station are very important for a station's environment and the health of people. However, only a handful of papers have compared and analyzed the composition of particulate matter and the risk of their exposure to people. To...

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Main Authors: Wang, Xinru, Meng, Xin, Chang, Li, Pei, Fei, Wan, Taocheng, Cui, Tong, Liu, Yiqiao, Pan, Song
Format: Article
Published: Elsevier 2024
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Online Access:http://eprints.um.edu.my/45148/
https://doi.org/10.1016/j.buildenv.2024.111604
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spelling my.um.eprints.451482024-09-19T08:13:57Z http://eprints.um.edu.my/45148/ Concentration, composition and exposure risk assessment of particulate matter with different particle sizes in subway stations Wang, Xinru Meng, Xin Chang, Li Pei, Fei Wan, Taocheng Cui, Tong Liu, Yiqiao Pan, Song TA Engineering (General). Civil engineering (General) TH Building construction Particle composition and risk assessment of their exposure in a subway station are very important for a station's environment and the health of people. However, only a handful of papers have compared and analyzed the composition of particulate matter and the risk of their exposure to people. To address these issues, environmental parameters and particulate matter were measured for one month at six different locations in twelve subway stations in a capital city located on the central coast of China. The particulate matter (PM), its composition and characteristics were analyzed and compared. The daily average exposure risk assessment model for the studied city was proposed to analyze the exposure risks associated with various particulate matters and metals for both commuters and workers. The results showed that, in all public areas (station hall, platform and carriage), the concentrations of PM were higher than those outside the subway station. The highest values of PM2.5, PM10, and TSP (total suspended particulates) were determined to be 158.3 mu g/m3, 168.0 mu g/m3, and 170.7 mu g/m3, respectively. The physical characteristics showed that the surface of particles inside the station was rougher, larger and darker in color. Compared to outdoors, the particles within the subway stations contained much more metals, particularly Fe that had the mass fraction of 9.59 %. On the other hand, the outdoor environment did not contain any Fe. These findings indicated that there were original sources of contamination at subway stations, and the hazardous nature of the particles was particularly pronounced within subway stations. The exposure risk of TSP and metals for workers was nearly twice that of passengers. This study aims to provide data that could help in controlling the environment at subway stations. Elsevier 2024-06 Article PeerReviewed Wang, Xinru and Meng, Xin and Chang, Li and Pei, Fei and Wan, Taocheng and Cui, Tong and Liu, Yiqiao and Pan, Song (2024) Concentration, composition and exposure risk assessment of particulate matter with different particle sizes in subway stations. Building and Environment, 258. p. 111604. ISSN 0360-1323, DOI https://doi.org/10.1016/j.buildenv.2024.111604 <https://doi.org/10.1016/j.buildenv.2024.111604>. https://doi.org/10.1016/j.buildenv.2024.111604 10.1016/j.buildenv.2024.111604
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic TA Engineering (General). Civil engineering (General)
TH Building construction
spellingShingle TA Engineering (General). Civil engineering (General)
TH Building construction
Wang, Xinru
Meng, Xin
Chang, Li
Pei, Fei
Wan, Taocheng
Cui, Tong
Liu, Yiqiao
Pan, Song
Concentration, composition and exposure risk assessment of particulate matter with different particle sizes in subway stations
description Particle composition and risk assessment of their exposure in a subway station are very important for a station's environment and the health of people. However, only a handful of papers have compared and analyzed the composition of particulate matter and the risk of their exposure to people. To address these issues, environmental parameters and particulate matter were measured for one month at six different locations in twelve subway stations in a capital city located on the central coast of China. The particulate matter (PM), its composition and characteristics were analyzed and compared. The daily average exposure risk assessment model for the studied city was proposed to analyze the exposure risks associated with various particulate matters and metals for both commuters and workers. The results showed that, in all public areas (station hall, platform and carriage), the concentrations of PM were higher than those outside the subway station. The highest values of PM2.5, PM10, and TSP (total suspended particulates) were determined to be 158.3 mu g/m3, 168.0 mu g/m3, and 170.7 mu g/m3, respectively. The physical characteristics showed that the surface of particles inside the station was rougher, larger and darker in color. Compared to outdoors, the particles within the subway stations contained much more metals, particularly Fe that had the mass fraction of 9.59 %. On the other hand, the outdoor environment did not contain any Fe. These findings indicated that there were original sources of contamination at subway stations, and the hazardous nature of the particles was particularly pronounced within subway stations. The exposure risk of TSP and metals for workers was nearly twice that of passengers. This study aims to provide data that could help in controlling the environment at subway stations.
format Article
author Wang, Xinru
Meng, Xin
Chang, Li
Pei, Fei
Wan, Taocheng
Cui, Tong
Liu, Yiqiao
Pan, Song
author_facet Wang, Xinru
Meng, Xin
Chang, Li
Pei, Fei
Wan, Taocheng
Cui, Tong
Liu, Yiqiao
Pan, Song
author_sort Wang, Xinru
title Concentration, composition and exposure risk assessment of particulate matter with different particle sizes in subway stations
title_short Concentration, composition and exposure risk assessment of particulate matter with different particle sizes in subway stations
title_full Concentration, composition and exposure risk assessment of particulate matter with different particle sizes in subway stations
title_fullStr Concentration, composition and exposure risk assessment of particulate matter with different particle sizes in subway stations
title_full_unstemmed Concentration, composition and exposure risk assessment of particulate matter with different particle sizes in subway stations
title_sort concentration, composition and exposure risk assessment of particulate matter with different particle sizes in subway stations
publisher Elsevier
publishDate 2024
url http://eprints.um.edu.my/45148/
https://doi.org/10.1016/j.buildenv.2024.111604
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score 13.209306