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The Qualitative Rate Estimation of PAHs in Carbon Compounds of Particles in Vehicles Exhaust Gas

자동차 배기가스 중 입자상 탄소성분 내 PAHs의 정성적 비율 추정

  • Kim, Jong Bum (Center for Environment, Health and Welfare Research Center, Korea Institute Science and Technology (KIST)) ;
  • Lee, Kyoung Bin (Department of Environmental Engineering, University of Seoul) ;
  • Kim, Jin Sik (Department of Environmental Engineering, University of Seoul) ;
  • Kim, Chang Hwan (Taewon SIBATA Co., Ltd.) ;
  • Cha, Yong Ho (Korea Environment Corporation, Department of Environment Analysis) ;
  • Kwon, Soon Bark (Transportation Environmental Research Team, Korea Railroad Research Institute (KRRI)) ;
  • Bae, Gwi Nam (Center for Environment, Health and Welfare Research Center, Korea Institute Science and Technology (KIST)) ;
  • Kim, Shin-Do (Department of Environmental Engineering, University of Seoul)
  • 김종범 (한국과학기술연구원 환경복지연구단) ;
  • 이경빈 (서울시립대학교 환경공학과) ;
  • 김진식 (서울시립대학교 환경공학과) ;
  • 김창환 ((주)태원시바타) ;
  • 차용호 (한국환경공단 환경분석처) ;
  • 권순박 (한국철도기술연구원 교통환경연구팀) ;
  • 배귀남 (한국과학기술연구원 환경복지연구단) ;
  • 김신도 (서울시립대학교 환경공학과)
  • Received : 2014.07.23
  • Accepted : 2014.10.08
  • Published : 2014.10.31

Abstract

Since the emergence of domestically produced automobiles in 1964, the number of automobiles in circulation in South Korea has increased constantly. With this rapidly increasing number of automobiles, automobile-induced environmental pollution has become an issue of great concern, especially with regard to air pollution. Of the carbon composites contained in automobile exhaust gas, PAHs are known to be carcinogenic and highly deleterious to humans and thus need to be urgently mitigated. To address this issue of PAHs, this study was conducted to estimate qualitative of particulate PAHs contained in carbon composites in automobile exhaust gas, by capturing all particulate matter discharged from the latter. To allow for differentiated analyses, the automobiles investigated were divided into 4 groups: gasoline vehicle, motocycle, diesel vehicle, and LPG vehicle. Samples were analyzed using two methods. First, in-depth analysis was performed on organic carbon (OC) and elemental carbon (EC) composites with analysis parameters, using the Thermal Optical Transmittance Method (NIOSH 5040). Second, for the examination of particulate PAHs, GC/MSD was used to analyze the 16 PAH species specified by the Environmental Protection Agency (EPA). The analyses yielded the findings that diesel vehicles had the highest mass concentration ($2,007{\mu}g/m^3$), followed by motocycle ($1,066{\mu}g/m^3$), LPG vehicle ($392{\mu}g/m^3$), and gasoline vehicles ($270{\mu}g/m^3$). The highest carbon concentrations in total particulate matter by vehicle weight were produced from LPG vehicle (79.8%), followed by gasoline vehicle (77.4%), motocycle (69.8%), and diesel vehicle (59.1%).

Acknowledgement

Grant : 도시 대기유해물질의 건강영향 감시 기술개발

Supported by : 한국과학기술연구원

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