Journal of Korean Society of Occupational and Environmental Hygiene (한국산업보건학회지)

Korean Industrial Hygiene Association (한국산업보건학회)
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Occupational Exposure Aspects of Gasoline Vapor According to the Use of a Gasoline Vapor Recovery System

주유소 유증기 회수설비 사용에 따른 가솔린 증기의 개인노출양상

  • Lee, Heemyung (Institute for Occupational Health & Graduate School of Public Health, Yonsei University) ;
  • Won, Jong-Uk (Institute for Occupational Health & Department of Preventive Medicine, Yonsei University College of Medicine) ;
  • Kim, Chi-Nyon (Institute for Occupational Health & Graduate School of Public Health, Yonsei University) ;
  • Roh, Jaehoon (Institute for Occupational Health & Department of Preventive Medicine, Yonsei University College of Medicine)
  • 이희명 (연세대학교 보건대학원 및 산업보건연구소) ;
  • 원종욱 (연세대학교 의과대학 예방의학교실 및 산업보건연구소) ;
  • 김치년 (연세대학교 보건대학원 및 산업보건연구소) ;
  • 노재훈 (연세대학교 의과대학 예방의학교실 및 산업보건연구소)
  • Received : 2014.02.24
  • Accepted : 2015.06.18
  • Published : 2015.06.30
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Abstract

Objectives: The purpose of this study was to investigate the possible effects of a gasoline vapor recovery system on personal exposure levels of gasoline vapor constituents including benzene, toluene, ethyl benzene, xylene(BTEX), and methyl tert-butyl ether(MTBE) among gas station workers in a metropolitan area. Methods: Thirty-one gas station workers at ten gas stations in a metropolitan area were selected as subjects for this study. Test method PV2028 as recommended in the OSHA process was used for sampling and analysis. Results: The personal exposure levels of benzene, toluene, ethyl benzene, xylene, MTBE and gasoline vapor in the gas station workers were $0.0018{\pm}0.0069ppm$, $0.0077{\pm}0.0137ppm$, $0.0002{\pm}0.0008ppm$, $0.0016{\pm}0.0084ppm$, $0.2619{\pm}0.3340ppm$, and $1.4940{\pm}1.7984ppm$, respectively. After adjustment for refueling frequency and volume, personal exposure levelswere higher in the gas stations where gasoline vapor recovery systems(Stage II) were not installed, but the results were not statistically significant. Gasoline vapor concentrations showed a positive correlation to the level of MTBE, a gasoline additive. Conclusions: Vapor recovery systems(Stage II) were effective not only in reducing emissions of air pollutants, but also in reducing exposure to hazardous substances among gas station workers. In addition, acorrelation between gasoline vapors and MTBE concentration was confirmed.

Keywords

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