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Analytical method of polycyclic aromatic hydrocarbons (PAHs) in oil contaminated soils

유류 오염토양 중 다환방향족탄화수소류(PAHs) 분석방법 고찰

  • Yoon, Jeong Ki (National Institute of Environmental Research, Soil and Groundwater Division) ;
  • Park, Jin Soo (National Institute of Environmental Research, Organics Analysis Division) ;
  • Shin, Sun Kyoung (National Institute of Environmental Research, Organics Analysis Division) ;
  • Kim, Tae Seung (National Institute of Environmental Research, Soil and Groundwater Division)
  • 윤정기 (국립환경과학원 토양지하수연구과) ;
  • 박진수 (국립환경과학원 유기물질분석연구과) ;
  • 신선경 (국립환경과학원 유기물질분석연구과) ;
  • 김태승 (국립환경과학원 토양지하수연구과)
  • Received : 2008.06.03
  • Accepted : 2008.08.05
  • Published : 2008.08.25

Abstract

This study was performed to establish an analytical method of PAHs in oil contaminated soil of these methods by evaluating the PAHs test methods from US EPA and ISO etc. The application to domestic contaminated soil leads to a conclusion that alumina column is a more effective clean-up procedure for oil contaminated soil rather than the others. It is proposed with the new analytical method of 12 PAHs except for more volatile compounds (naphthalene, acenaphthylene, acenaphthene, fluorene). The recovery of PAHs in this method ranged 67~107%. The oil contaminated soil samples were analyzed using GC/MSD. The concentration of PAHs ranged $78.68{\sim}275.57{\mu}g/kg$. The predominated compounds were fluoranthene, pyrene and chrysene attributing about 70% of total concentration. The level of Benzo[a]pyrene ranged $1.76{\sim}24.65{\mu}g/kg$.

본 연구에서는 유류 오염 토양 중에 함유 되어 있는 다환방향족탄화수소류(PAHs)의 시험방법을 확립하고자 수행되었다. 토양 중 PAHs 시험방법으로 미국 EPA 및 ISO 시험방법 등을 비교검토하고 국내 오염 토양에 대한 적용성을 검토한 결과, 유류 오염토양의 분석을 위해서는 알루미나 전처리 방법이 보다 효율적인 것으로 나타났으며, 휘발성이 큰 naphthalene, acenaphthene, acenaphthylene, fluorene 등 4종을 제외한 PAHs 12종에 대한 회수율이 67~107%범위로 나타나 이들 물질에 대한 시험방법을 마련하였다. 또한, 유류로 오염된 토양 5점을 선정하여 시험방법에 대한 적용성 시험 결과, 분석대상 12종 PAHs는 모든 시료에서 $78.68{\sim}275.57{\mu}g/kg$로 검출되었으며, 이중 phenanthrene, pyrene, chrysene 등은 전체 농도의 약 70%로 대부분의 비율을 차지하였다. 특히 BaP의 경우 농도범위는 $1.76{\sim}24.65{\mu}g/kg$으로 나타났다.

Keywords

References

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