Modeling of natural organic matter transport processes in groundwater

T. C.J. Yeh, J. Mas-Pla, J. F. McCarthy, T. M. Williams

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


A forced-gradient tracer test was conducted at the Georgetown site to study the transport of natural organic matter (NOM) in groundwater. In particular, the goal of this experiment was to investigate the interactions between NOM and the aquifer matrix. A detailed three-dimensional characterization of the hydrologic conductivity heterogeneity of the site was obtained using slug tests. The transport of a conservative tracer (chloride) was successfully reproduced using these conductivity data. Despite the good simulation of the flow field, NOM breakthrough curves could not be reproduced using a two-site sorption model with spatially constant parameters. Preliminary results suggest that different mechanisms for the adsorption/desorption processes, as well as their spatial variability, may significantly affect the transport and fate of NOM.

Original languageEnglish (US)
Pages (from-to)41-46
Number of pages6
JournalEnvironmental health perspectives
Issue numberSUPPL. 1
StatePublished - 1995


  • Groundwater pollution
  • Hydrologic heterogeneity
  • Natural organic matter
  • Sorption processes
  • Spatial variability
  • Tracer test

ASJC Scopus subject areas

  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis


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