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Related Experiment Video

Updated: Jun 4, 2026

Continuous Instream Monitoring of Nutrients and Sediment in Agricultural Watersheds
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Published on: September 26, 2017

Estimating changes in river faecal coliform loading using nonparametric multiplicative regression.

Christopher J Schulz1, Gary W Childers

  • 1Department of Biological Sciences, Southeastern Louisiana University, Hammond, LA 70402, USA. gchilders@selu.edu

Journal of Water and Health
|February 9, 2011
PubMed
Summary
This summary is machine-generated.

Monitoring fecal coliform (FC) in the Tangipahoa River revealed a significant reduction following wastewater treatment plant upgrades. A nonparametric multiplicative regression (NPMR) model confirmed the improvements were not solely due to climate variations.

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Published on: March 9, 2016

Area of Science:

  • Environmental Science
  • Water Quality Monitoring
  • Wastewater Treatment

Background:

  • Faecal coliform (FC) contamination poses risks to river ecosystems and public health.
  • Understanding FC dynamics is crucial for effective water resource management.
  • Previous models often require complex physical watershed simulations.

Purpose of the Study:

  • To monitor FC concentrations in the Tangipahoa River over an eight-year period.
  • To develop and apply a nonparametric multiplicative regression (NPMR) model for FC forecasting and backcasting.
  • To assess the impact of wastewater treatment plant remediation on FC levels.

Main Methods:

  • Weekly monitoring of FC concentration in the Tangipahoa River.
  • Utilized USGS discharge and precipitation data.
  • Constructed and applied an NPMR model for FC density estimation and time-series analysis.

Main Results:

  • FC concentrations showed a notable decrease coinciding with wastewater treatment plant remediation efforts.
  • The NPMR model indicated that climate variations (discharge, precipitation) alone did not account for the observed FC reduction.
  • The NPMR model successfully estimated FC concentrations across different flow regimes.

Conclusions:

  • Wastewater treatment plant remediation effectively reduced FC levels in the Tangipahoa River.
  • The NPMR model provides a robust and less complex alternative to physical watershed models for FC estimation.
  • This method can be used for detecting new pollution impacts and forecasting daily FC levels.