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Study on Particulate Pollutant Reduction Characteristics of Vegetation Biofilters in Underground Subway Stations  

Kim, Tae Han (Dept. of Green Smart City, Sangmyung University)
Oh, Ji Eun (Dept. of Green Smart City, Sangmyung University)
Kim, Mi Ju (Dept. of Landscape Architecture, Sangmyung University)
Publication Information
Journal of the Semiconductor & Display Technology / v.21, no.4, 2022 , pp. 99-105 More about this Journal
Abstract
Public attention to the indoor environment of underground subway stations, which is a representative multi-use facility, has been increasing along with the increase in indoor activities. In underground stations, fine iron oxide, which affects the health of users, is generated because of the friction between wheels and rails. Among particulate pollutant reduction technologies, plants have been considered as a non-chemical air purification method, and their effects in reducing certain chemical species have been identified in previous studies. The present study aimed to derive the total quantitative and qualitative reduction effects of a bio-filter system comprising air purifying plants, installed in an underground subway station. The experiment proceeded in two ways. First, PM(particulate matter) reduction effect by vegetation biofilter was monitored with the IAQ(indoor air quality) station. In addition, chemical speciation analysis conducted on the samples collected from the experimental and control areas where plants and irrigation using SEM-EDS(scanning electron microscopy-energy dispersive X-ray spectroscopy). This study confirmed the effect of the vegetation bio-filter system in reducing the accumulation of particulate pollutants and transition and other metals that are harmful to the human body.
Keywords
Particulate matter; SEM(scanning electron microscope); EDS(energy dispersive x-ray spectroscopy); IAQ(indoor air quality); Phytoremediation;
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Times Cited By KSCI : 4  (Citation Analysis)
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