A multivariate study for characterizing particulate matter (PM10, PM2.5, and PM1) in Seoul metropolitan subway stations, Korea

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dc.contributor.author Kwon, Soon-Bark ko
dc.contributor.author Jeong, Wootae ko
dc.contributor.author Park, Duckshin ko
dc.contributor.author Kim, Ki-Tae ko
dc.contributor.author Cho, Kyung Hwa ko
dc.date.available 2015-10-05T07:27:53Z -
dc.date.created 2015-10-05 ko
dc.date.issued 2015-10 ko
dc.identifier.citation JOURNAL OF HAZARDOUS MATERIALS, v.297, pp.295 - 303 ko
dc.identifier.issn 0304-3894 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/17306 -
dc.description.abstract Given that around eight million commuters use the Seoul Metropolitan Subway (SMS) each day, the indoor air quality (IAQ) of its stations has attracted much public attention. We have monitored the concentration of particulate matters (PMx) (i.e., PM10, PM2.5, and PM1) in six major transfer stations per minute for three weeks during the summer, autumn, and winter in 2014 and 2015. The data were analyzed to investigate the relationship between PMx concentration and multivariate environmental factors using statistical methods. The average PM concentration observed was approximately two or three times higher than outdoor PM10 concentration, showing similar temporal patterns at concourses and platforms. This implies that outdoor PM10 is the most significant factor in controlling indoor PM concentration. In addition, the station depth and number of trains passing through stations were found to be additional influences on PMx. Principal component analysis (PCA) and self-organizing map (SOM) were employed, through which we found that the number of trains influences PM concentration in the vicinity of platforms only, and PMx hotspots were determined. This study identifies the external and internal factors affecting PMx characteristics in six SMS stations, which can assist in the development of effective IAQ management plans to improve public health. (C) 2015 Elsevier B.V. All rights reserved ko
dc.description.statementofresponsibility close -
dc.language 영어 ko
dc.publisher ELSEVIER SCIENCE BV ko
dc.title A multivariate study for characterizing particulate matter (PM10, PM2.5, and PM1) in Seoul metropolitan subway stations, Korea ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84929646311 ko
dc.identifier.wosid 000360595700035 ko
dc.type.rims ART ko
dc.description.wostc 0 *
dc.description.scopustc 0 *
dc.description.scopustc 0 *
dc.date.tcdate 2015-12-28 *
dc.date.scptcdate 2015-11-04 *
dc.date.scptcdate 2015-11-04 *
dc.identifier.doi 10.1016/j.jhazmat.2015.05.015 ko
dc.identifier.url http://www.sciencedirect.com/science/article/pii/S0304389415004112 ko
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