Potential Exposure of Indoor Air Pollutants inside Vehicle for Professional Taxi Drivers

영업용 택시 운전자들의 공기오염물질 노출평가

  • Yang Won-Ho (Department of Occupational Health, Catholic University of Daegu) ;
  • Kim Dae-Won (Department of Environmental Science, Catholic University of Daegu) ;
  • Kim Young-Hee (Department of Occupational Health, Catholic University of Daegu) ;
  • Kim Jong-Oh (Department of Environmental Health, Dongnam Health College)
  • 양원호 (대구가톨릭대학교 산업보건학과) ;
  • 김대원 (대구가톨릭대학교 환경과학과) ;
  • 김영희 (대구가톨릭대학교 산업보건학과) ;
  • 김종오 (동남보건대학 환경보건과)
  • Published : 2005.12.01

Abstract

Professional taxi driver exposure to indoor air pollutants has been a subject of concern in recent years because of higher levels of air pollutants, comparing to the surrounding atmosphere. This study evaluated the potential exposure to respirable suspended particulate (RSP), nitrogen dioxide $(NO_2)$ and volatile organic compounds (VOCs; benzene and toluene) for professional taxi drivers inside each of 10 vehicles in Pusan, comparing weekday (Monday and Thursday) and weekend (Saturday). Indoor mean concentrations of RSP inside vehicle were $53.88\;ug/m^3\;and\;75.52\;ug/m^3$ on weekday and weekend, respectively. Measured indoor $NO_2$ concentrations were 28.32ppb and 40.69 ppb, respectively. Benzene and toluene mean concentrations inside vehicle were 5.41 ppb and 11.36 ppb, respectively. Considering no smoking of taxi drivers inside vehicle, closed window in winter, and increased usage of taxi on weekend, source of indoor air pollutants inside taxi might be mainly suggested from the number of passenger's carried, faulty exhaust systems, and engine and carburetor evaporative emissions.

Keywords

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