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ISSN : 1738-4125(Print)
ISSN : 2287-7509(Online)
Journal of Odor and Indoor Environment Vol.3 No.1 pp.8-15

서울시 지하철 객차내에서의 이산화탄소 농도 조사

박화미, 노영만* , 이철민, 김윤신, 박동선1), 장봉기2), 원영재3)
한양대학교 환경 및 산업의학연구소, 1)주) 이플러스티, 2)순천향대학교 환경보건학과, 3)동남대학교(중국)

A survey of CO2 Concentration Levels in Some Passenger Cabin of the Seoul Metropolitan Subway

Young-Man Roh*, Wha Me Park, Choel Min Lee, Yoon Shin Kim, Dong Sun Park1), Bong Ki Jang2), Young Jae Won(China)3)
Institute of Environmental and Industrial Medicine, Hanyang University
1)EplusT Co., Ltd, 2)Department of Environmental Health Science, Soonchunhyang University
3)Southeast University


This study was performed to investigate the concentration levels of CO2 and the associated parametersin the subway from lines 1 to 8 in Seoul metropolitan area, during 1 to 30 Sept. 2005. CO2 concentrationwas measured at the entrance and center in subway passenger cabin by non-dispersive infrared analyser.The associated parameters for CO2 were estimated based on the number of passenger, open and closeddoors etc.The mean CO2 concentrations were measured to be 1,646±712 ppm in subway passenger cabins. The CO2concentrations showed the highest values between 7 and 9 AM in rush hour(p〈0.01). The correlationcoefficient between CO2 and the number of passenger was highly significant(r=0.824). The general linearmodel indicated that subway line, subway location (ground and underground tract), and measurement point(enterance and center of cabins) and running time (morning and afternoon) significantly influenced theconcentrations of CO2. An extended study is needed to examine the sources of CO2 in subway cabins andto compare pollutants concentration among subway lines.

CO2,subway,passenger cabin