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Unpublished Paper
Role of Directly Connected Macropores on Pathogen Transport to Subsurface Drainage Water
Iowa State Research Farm Progress Reports
  • Chi Kim Hoang, Iowa State University
  • Carl H. Pederson, Iowa State University
  • Rameshwar S. Kanwar, Iowa State University
  • Garey Fox, Oklahoma State University - Stillwater
Northeast Research and Demonstration Farm
Extension Number
RER A9116
Publication Date
Pathogen contamination of water supplies is now considered one of the top water quality issues in the United States and worldwide. Continual application of livestock manure may contribute to nonpoint source pollution by releasing microbial pathogens including bacteria, virus, and protozoa, through runoff and subsurface drainage water to surface and ground water. Many studies have been conducted in the laboratories and fields to understand the preferential flow through macropores. But no experiments in the field have been conducted to examine the breakthrough curve of pathogen and/or Escherichia coliform (E.coli) with directly connected macropores. The objective of this research is to address the transport of pathogens (specifically the indicator organism E. coli) through soils, and more specifically the role of macropores in the transport of E. coli to subsurface drains. A greater understanding and more theoretical modeling approach is needed to understand the role of directly connected macropores on pathogen transport to subsurface drainage.
Copyright Owner
Iowa State University
File Format
Citation Information
Chi Kim Hoang, Carl H. Pederson, Rameshwar S. Kanwar and Garey Fox. "Role of Directly Connected Macropores on Pathogen Transport to Subsurface Drainage Water" (2010)
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