Diffusive transport and evaporation to the atmosphere from a NAPL source in the vadose zone

L.E. Holtegaard, T. Bjerre, Mette Christophersen, Peter Kjeldsen

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch


To evaluate the risks concerned with the presence of volatile organic compounds in the unsaturated zone it is important to know how the compounds are transported in the soil. In this project the effective diffusion coefficient of 3-methylpentane, hexane, methyl-cyclopentane, iso-octane and methyl-cyclo-hexane has been measured in-situ using a diffusive tracer test (DTT). Furthermore the flux from a NAPL source has been measured in flux chambers. From these results the effective diffusion coefficient has been calculated for CFC113, methyl-cyclo-pentane, benzene, iso-octane, and methyl-cyclo-hexane, but there is a large variation between these results and the corresponding values from the DTT-experiment.
Original languageEnglish
Title of host publicationVintermøde om jord- og grundvandsforurening, Vingstedcentret 5-6 marts
Place of PublicationKgs. Lyngby
PublisherATV-fonden for Jord og Grundvand
Publication date2002
Publication statusPublished - 2002
EventVintermøde om jord- og grundvandsforurening 2002 - Vingstedcentret, Bredsten, Denmark
Duration: 5 Mar 20026 Mar 2002


SeminarVintermøde om jord- og grundvandsforurening 2002


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