SaniPath | Exposure Assessment Tool
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Assessing Public Health Risks from Unsafe Fecal Sludge Management in Poor Urban Neighborhoods

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Rapid urbanization has led to a sanitation crisis in low-income urban areas.  How can limited public funding best be used to improve sanitation and reduce public health risks?  City governments and development partners lack tools to assess the public health risks from poor sanitation. The SaniPath Exposure Assessment Tool is designed to assess risk related to poor sanitation and to help prioritize sanitation investments based on the exposures that have the greatest public health impact.

The SaniPath Exposure Assessment Tool:


  • Data from simple environmental microbiology methods and behavioral surveys are combined to assess the relative exposure to fecal contamination. Relevant exposure pathways include open drains, drinking water, surface waters, public latrines, soils, wastewater-irrigated produce, and floodwater.
  • The SaniPath Exposure Assessment Tool automatically generates risk profiles for each pathway using data entered by the user.
  • The risk profiles show users which pathways contribute the greatest risk and where interventions may have the greatest impact on reducing exposure to fecal contamination.