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http://dx.doi.org/10.5572/KOSAE.2017.33.6.593

Characteristics of Particulate Matter Concentration and Classification of Contamination Patterns in the Seoul Metropolitan Subway Tunnels  

Lee, Eun-Sun (Department of Applied Environmental Science, Kyung Hee University)
Lee, Tae-Jung (Department of Applied Environmental Science, Kyung Hee University)
Park, Min-Bin (Department of Applied Environmental Science, Kyung Hee University)
Park, Duck-Shin (Transport Environment Research Team, Korea Railroad Research Institute)
Kim, Dong-Sool (Department of Applied Environmental Science, Kyung Hee University)
Publication Information
Journal of Korean Society for Atmospheric Environment / v.33, no.6, 2017 , pp. 593-604 More about this Journal
Abstract
The suspended particulate matter(PM) was measured in subway tunnel of Seoul Line 1 to 9 in order to evaluate the pollution degree and characteristics of the PM in the subway tunnel. Also, to analyze the effect of outdoor aerosol concentration on the PM concentration of subway tunnels, the ambient PM concentration around the subway station was extracted by spatial analysis using $PM_{10}$ data of Seoul air pollution monitoring network. Finally, in order to understand pollution pattern in the Seoul subway tunnels, cluster analysis was performed based on input data set such as PM levels in tunnel, tunnel depth, length, curvature radius, outdoor ambient air pollution levels and so on. The average concentration of $PM_{10}$, $PM_{2.5}$, and $PM_1$ on subway tunnels were $98.0{\pm}37.4$, $78.4{\pm}28.7$, and $56.9{\pm}19.2{\mu}g/m^3$, respectively. As a result of the cluster analysis, tunnels from Seoul subway Line-1 to Line-9 were classified into five classes, and the concentrations and physical properties of the tunnels were compared. This study can provide a method to reduce PM concentration in tunnel for each pollution pattern and provide basic information about air quality control in Seoul subway tunnel.
Keywords
PM; Subway; Tunnel; Cluster analysis; Pattern recognition;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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