2018
DOI: 10.1016/j.scitotenv.2018.02.140
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Comparative predictive modelling of the occurrence of faecal indicator bacteria in a drinking water source in Norway

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Cited by 27 publications
(8 citation statements)
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“…Knowledge of the variability of indicator concentrations at fine time scales of minutes, hours, and days is needed to evaluate the uncertainty of the results from a one‐off grab sample intended to represent the daily or weekly values. Such variability was studied by Muirhead and Meenken (2018) for baseflow conditions in three New Zealand rivers in summer and winter seasons. The variability of E. coli concentrations at the above three time scales increased with time scale and exceeded the laboratory replication variability at all scales.…”
Section: Spatiotemporal Variability Of Microbial Water Qualitymentioning
confidence: 99%
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“…Knowledge of the variability of indicator concentrations at fine time scales of minutes, hours, and days is needed to evaluate the uncertainty of the results from a one‐off grab sample intended to represent the daily or weekly values. Such variability was studied by Muirhead and Meenken (2018) for baseflow conditions in three New Zealand rivers in summer and winter seasons. The variability of E. coli concentrations at the above three time scales increased with time scale and exceeded the laboratory replication variability at all scales.…”
Section: Spatiotemporal Variability Of Microbial Water Qualitymentioning
confidence: 99%
“…The dependence of the variability and uncertainty in microbial concentrations on the temporal scale of data collection (e.g., Muirhead and Meenken, 2018) creates a conundrum for evaluating the performance of environmental microbial fate and transport simulations. In such simulations, both model calibration and validation commonly do not account for the uncertainty of measured values at the scale of simulated values.…”
Section: Watershed‐scale Modelingmentioning
confidence: 99%
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“…Bacteria concentrations may be used for mathematical modeling with the view of predicting bacteriological contamination of natural water [19]. However, modeling cannot anticipate low concentrations of fecal contamination whereby water quality monitoring remains a priority in assessing intestinal infection health risks and waterborne disease risks [36].…”
Section: Research Articlementioning
confidence: 99%
“…The model is designed to prevent overfitting by calculating prediction errors from "out-of-bag samples" (one-third of training data) for each tree, thus obviating the need for additional testing of the model accuracy. Further description of the random forest machine learning and its appropriateness for use in predicting E. coli in raw water can be found in the work of Mohammed et al (2018). In this study, weekly measurements of turbidity and color in the water sources from 2009 -2015 were used to train and test the RF models for predicting E. coli in the water sources.…”
Section: Prediction Of Future E Coli With Random Forest Modelsmentioning
confidence: 99%