Residual concentration of gasoline in unsaturated zone - Effects of temperature, soil type and water content -

Junko Nishiwaki, Yoshishige Kawabe, Yasuhide Sakamoto, Takeshi Komai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Petroleum hydrocarbons and organic solvents are one of the major contaminants in the groundwater and the soil environment. Risk and exposure assessment for soil and groundwater environment are very important for both aspects of health and environmental protection as well as making decision of remedial goal for engineering activities. To understand the risk levels of toxic chemicals, risk assessment model (Geo-environmental Risk Assessment System) have been developed. Although parameters related to the fate of hazardous chemical compounds such as advection, dispersion, volatilization or sorption are important factor in this system, those parameters for mineral oils have not been investigated enough. In this study, we studied the fate of gasoline and gasoline components in unsaturated soil to obtain many parameters for gasoline. A set of batch experiments were carried out understanding the effect of different conditions on the residual concentration of gasoline and gasoline components. The residual concentrations of them were proportional to organic matter content and water content. And organic matter content related to the residual concentration of C10 - C13, meanwhile, soil water content related to the residual concentration of C6 - C9. Additionally, aromatic compounds tended to remain in the soils that include much organic matter.

Original languageEnglish
Title of host publicationProceedings of the IASTED International Conference on Environmental Management and Engineering, EME 2009
Pages189-194
Number of pages6
Publication statusPublished - 2009 Dec 1
Externally publishedYes
EventIASTED International Conference on Environmental Management and Engineering, EME 2009 - Banff, AB, Canada
Duration: 2009 Jul 62009 Jul 8

Other

OtherIASTED International Conference on Environmental Management and Engineering, EME 2009
CountryCanada
CityBanff, AB
Period09/7/609/7/8

Keywords

  • Component
  • Gasoline
  • Organic matter content
  • Residual
  • Water content

ASJC Scopus subject areas

  • Environmental Engineering
  • Management, Monitoring, Policy and Law

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