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Multi-Year Microbial Source Tracking Study Characterizing Fecal Contamination in an Urban Watershed

  • Bushon R
  • Brady A
  • Christensen E
  • et al.
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Abstract

© 2017, Water Environment Federation. All rights reserved. Microbiological and hydrological data were used to rank tributary stream contributions of bacteria to the Little Blue River in Independence, Missouri. Concentrations, loadings and yields of E. coli and microbial source tracking (MST) markers, were characterized during base flow and storm events in five subbasins within Independence, as well as sources entering and leaving the city through the river. The E. coli water quality threshold was exceeded in 29% of base-flow and 89% of storm-event samples. The total contribution of E. coli and MST markers f rom tributaries within Independence to the Little Blue River, regardless of streamflow, did not significantly increase the median concentrations leaving the city. Daily loads and yields of E. coli and MST markers were used to rank the subbasins according to their contribution of each constituent to the river. The ranking methodology used in this study may prove useful in prioritizing remediation in the different subbasins.

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APA

Bushon, R. N., Brady, A. M. G., Christensen, E. D., & Stelzer, E. A. (2017). Multi-Year Microbial Source Tracking Study Characterizing Fecal Contamination in an Urban Watershed. Water Environment Research, 89(2), 127–143. https://doi.org/10.2175/106143016x14798353399412

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