Pathogens in livestock waste, their potential for movement through soil and environmental pollution

Jane L. Mawdsley, Richard D. Bardgett, Roger J. Merry, Brian F. Pain, Michael K. Theodorou

    Research output: Contribution to journalArticlepeer-review


    Livestock wastes contain many pathogenic microorganisms including bacteria, viruses and protozoa. Following the application of these wastes to land the potential exists for environmental contamination. Plants, soil and ultimately water courses which may subsequently be used as catchments for public water supplies may all be affected. Research attention is now being focused on this possibility, especially in the case of protozoan pathogens which may be the most important as they are often resistant to current methods used in public water treatment. In this review we highlight some of the many factors that are likely to influence the degree of pollution by their effect on both the vertical and horizontal transport of microorganisms through soil. Soil pH, temperature, the presence of plants, microbial surface properties, type of waste, soil type and soil water content and flow may all affect the rate and extent of vertical transport, with the latter two generally considered to be the most important. Lateral movement is a particular problem in soils with impermeable substrata or in waterlogged conditions and in these cases the major factors affecting movement include rainfall rate, topography of the land and the rate at which microorganisms partition into the runoff. © 1995.
    Original languageEnglish
    Pages (from-to)1-15
    Number of pages14
    JournalApplied Soil Ecology
    Issue number1
    Publication statusPublished - Mar 1995


    • Livestock waste
    • Movement
    • Pathogens
    • Pollution
    • Soil


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