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http://dx.doi.org/10.5668/JEHS.2019.45.2.186

Characteristics of In-cabin PM2.5 Concentration in Seoul Metro Line Number 2 in Autumn  

Shin, Hyerin (Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University)
Jung, Hyunhee (Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University)
Lee, Kiyoung (Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University)
Publication Information
Journal of Environmental Health Sciences / v.45, no.2, 2019 , pp. 186-191 More about this Journal
Abstract
Objectives: Subway is one of the most common transportation modes in Seoul, Korea. The objectives of this study were to determine characteristics of in-cabin $PM_{2.5}$ concentration in Seoul Metro Line Number 2 and to identify factors of the $PM_{2.5}$ concentration. Methods: In-cabin $PM_{2.5}$ concentrations in Seoul Metro Line Number 2 were measured using real-time monitors and the factors affecting $PM_{2.5}$ concentration in cabin were observed. Linear regression analysis of in-cabin $PM_{2.5}$ concentration and indoor/outdoor (I/O) ratio were performed. Results: In-cabin $PM_{2.5}$ concentration was associated with the in-cabin $PM_{2.5}$ concentration in previous station. In-cabin $PM_{2.5}$ concentration was correlated with ambient $PM_{2.5}$ concentration and associated with underground station with control of the in-cabin $PM_{2.5}$ concentration in previous station. I/O ratio increased as the number of passengers increased and when passing through the underground station with control of I/O ratio in previous station. Conclusion: In-cabin $PM_{2.5}$ concentration was affected by ambient $PM_{2.5}$ concentration. Therefore, management of in-cabin $PM_{2.5}$ concentrations should be based on outdoor air quality.
Keywords
Seoul metro; subway cabin; $PM_{2.5}$; I/O ratio; indoor air;
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Times Cited By KSCI : 3  (Citation Analysis)
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