Development and application of a catchment scale pesticide fate and transport model for use in drinking water risk assessment

This paper describes the development and application of IMPT (Integrated Model for Pesticide Transport), a parameter-efficient tool for predicting diffuse-source pesticide concentrations in surface waters used for drinking water supply. The model was applied to a small UK headwater catchment with hi...

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Bibliographic Details
Published in:The Science of the total environment 2016-09, Vol.563-564, p.434-447
Main Authors: Pullan, S.P., Whelan, M.J., Rettino, J., Filby, K., Eyre, S., Holman, I.P.
Format: Article
Language:English
Subjects:
Catchment scale model
Diffuse pesticide transfer
Drainflow
Drinking Water - analysis
Drinking water resources
Environmental Monitoring - methods
Models, Theoretical
Parameter-efficient
Pesticides - analysis
Risk Assessment
Water Pollutants, Chemical - analysis
Water Resources
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Summary:This paper describes the development and application of IMPT (Integrated Model for Pesticide Transport), a parameter-efficient tool for predicting diffuse-source pesticide concentrations in surface waters used for drinking water supply. The model was applied to a small UK headwater catchment with high frequency (8h) pesticide monitoring data and to five larger catchments (479–1653km2) with sampling approximately every 14days. Model performance was good for predictions of both flow (Nash Sutcliffe Efficiency generally >0.59 and PBIAS
ISSN:0048-9697
1879-1026
DOI:10.1016/j.scitotenv.2016.04.135