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ISSN : 1738-4125(Print)
ISSN : 2287-7509(Online)
Journal of Odor and Indoor Environment Vol.8 No.1 pp.11-19

KTX 객실내 부유미생물 오염현황 조사

권순박, 박덕신, 조영민, 박재형, 김세영, 박은영, 김창수1), 김기연2)*
한국철도기술연구원 철도환경연구실, 1)연세대학교 의과대학 예방의학과
2)한양대학교 환경 및 산업의학연구소

Investigation of airborne microorganism in cabin of the KTX

Ki-Youn Kim2)*, Soon-Bark Kwon, Duck-Shin Park, Youngmin Cho, Jae-Hyoung Park, Se-Young Kim, Eun-Young Park, Changsoo Kim1)
2)Institute of Environmental and Industrial Medicine, Hanyang University
Railroad Environment Research Department, Korea Railroad Research Institute
1)Department of Preventive Medicine, College of Medicine, Yonsei University


The objective of this study is to assess a level of microbial contamination in the KTX. Investigation sites in theKTX were cabin, gateway, toilet and passenger seat. It was found that the mean concentrations of airbornebacteria and fungi were 157 CFU/m3 and 84 CFU/m3 , respectively, in all of the investigation sites of the KTX. Theydid not exceed the domestic standard (800 CFU/m3 ) for airborne bacteria and the guideline (150 CFU/m3 ) forairborne fungi recommended by WHO. Mean levels of bacteria and fungi distributed in passenger seat were2.6×105 cfu/m3 and 3.7×104 cfu/m3 , respectively. The predominant genera identified in the KTX were Bacillus,Corynebacterium, Staphylococcus and Micrococcus for bacteria and Aspergillus, Cladosporium andPenicillium for fungi, respectively. Based on identification result, the profiles of airborne bacteria and fungiin the KTX was wholly similar to those of bacteria and fungi distributed in the passenger seat.