Measurement of Volatile Organic Compounds Concentrations in the Air of a Highway Tunnel

고속도로 터널내부 공기 중 휘발성 유기화합물의 농도 측정

  • 백성옥 (영남대학교 환경공학과) ;
  • 김영민 (영국 버밍햄대학교 화학과) ;
  • 황승만 (영남대학교 환경공학과)
  • Published : 1998.02.01

Abstract

In this study, a total of 10 volatile organic compounds (VOCs) including BTEX were determined in the inside and outside of a highway thnnel in order to evaluate the emission profile of automobile exhaust with respect to the concentrations, relative ratio and correlation coefficient of target analytes. In addition to VOCs, CO $CO_2 and NO_2$ were measured simultaneously. The results of this study indicated that the most abundant compound was toluene followed by benzene and m+p-xylenes, and the correlation coefficients between VOCs except styrene were higher than 0.96. The concentration ratio of toluene, ethylbenzene, xylenes with respect to benzene measured in the inside of tunnel was 1.5, 0.13, 0.74, respectively. Such ratios were found to be very similar to those measured in tunnels in the USA.

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