Effect of Environmental Factors on Coliphage Concentrations In Surface Waters Public Deposited

Downloadable Content

Download PDF
Last Modified
  • March 20, 2019
  • Young, Brianna
    • Affiliation: Gillings School of Global Public Health, Department of Environmental Sciences and Engineering
  • Coliphages have been suggested as water quality indicators. The objective of this research was to evaluate effects of environmental factors on coliphage concentrations in San Diego surface waters using both field sampling of recreational waters and controlled mesocosm experiments. Water samples were collected from beach sites during rainfall and tidal events and analyzed for F+ and somatic coliphages, and from a controlled freshwater system in summer and winter. Regression models determined significance of coliphage concentration with different environmental factors. Coliphage concentrations were significantly affected by sample location, rainfall, water temperature, and season, but not by surf height, sea state, salinity, kelp coverage, tide height, wind speed, and turbidity (α= 0.05). Potential coliphage die-off was observed along the San Diego River. This research informs how environmental factors affect coliphage concentrations and demonstrates timing and conditions for viral contamination of surface waters.
Date of publication
Resource type
Rights statement
  • In Copyright
  • Noble, Rachel T.
  • Griffith, John
  • Stewart, Jill
  • Master of Science
Degree granting institution
  • University of North Carolina at Chapel Hill Graduate School
Graduation year
  • 2016

This work has no parents.