Volatilization properties of gasoline components in soils

Junko Nishiwaki, Yoshishige Kawabe, Yasuhide Sakamoto, Takeshi Komai, Ming Zhang

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Understanding the volatilization properties of gasoline components in soils is of fundamental importance in the field of geoenvironments. A series of experiments were performed to investigate the effects of temperature, soil water content, soil organic matter content, as well as mean particle size on volatilization rate of total petroleum hydrocarbons (TPH) and the paraffin (n-paraffin and isoparaffin), olefin, naphthene, and aromatic (PONA) components in four typical Japanese soils. The results of this study can be summarized as follows. (1) Volatilization rate of gasoline in a soil is concentration-dependent; extensive volatilization occurs above a certain threshold, while volatilization becomes very slow below this threshold. (2) Compared to other factors, temperature and soil organic matter content have greater effects on volatilization rate of gasoline in soils. The volatilization rate is proportional to temperature, but inversely related to soil organic matter content. (3) The characteristics of time-dependent decreases of TPH and PONA components in soils are similar. The volatilization rate of olefin is higher than those of other components. In addition, volatilization of olefin is also more sensitive to temperature as well as organic matter content.

Original languageEnglish
Pages (from-to)87-95
Number of pages9
JournalEnvironmental Earth Sciences
Issue number1
Publication statusPublished - 2011 May
Externally publishedYes


  • Gasoline
  • PONA components
  • Soil organic matter
  • Temperature
  • Total petroleum hydrocarbons
  • Volatilization rate

ASJC Scopus subject areas

  • Global and Planetary Change
  • Environmental Chemistry
  • Water Science and Technology
  • Soil Science
  • Pollution
  • Geology
  • Earth-Surface Processes


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