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Updated: Jul 13, 2026
11:29
Cost-effective Method for Microbial Source Tracking Using Specific Human and Animal Viruses
Published on: December 3, 2011
Fecal source tracking, the indicator paradigm, and managing water quality
Katharine G Field1, Mansour Samadpour
1Department of Microbiology, Oregon State University, Corvallis, OR 97331, USA. kate.field@oregonstate.edu
Water Research
|July 24, 2007
Summary
Fecal source tracking methods need more rigorous testing for accuracy. Current water quality regulation should integrate pathogen monitoring with source tracking for better public health protection.
Area of Science:
- Environmental microbiology
- Water quality assessment
- Public health
Background:
- Standard methods for measuring fecal contamination in water rely on fecal indicator bacteria (FIB), which do not identify contamination sources.
- Fecal source tracking (FST) aims to identify the origins of fecal pollution in water bodies.
Purpose of the Study:
- To critically review FST methods, evaluating their testing rigor, applicability, limitations, and utility in predicting public health risks.
- To discuss the efficacy of FST and FIB monitoring in regulating water quality and protecting human health.
Main Methods:
- Review of existing literature on FST methods, focusing on comparative testing, blind sample analysis, and field applicability.
- Analysis of the requirements for quantitative FST, including marker stability and correlation with pathogens.
- Discussion of current legislative emphasis on FIB and its impact on pathogen monitoring.
Main Results:
- Many FST methods lack rigorous comparative testing and validation in real-world scenarios, hindering accurate performance assessment.
- Quantitative FST requires established stability of host-specific markers in the environment and further research on marker-pathogen correlations and survival.
- Current water quality legislation's focus on FIB has led to a neglect of direct pathogen monitoring.
Conclusions:
- A more effective water quality regulation approach involves using epidemiological data to identify key pathogens, followed by targeted pathogen monitoring and FST.
- Baseline FIB monitoring should be one component among a suite of tools for water quality management and public health protection.
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