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A practical demonstration in modelling diclofenac and propranolol river water concentrations using a GIS hydrology model in a rural UK catchment

Johnson, A. C.; Keller, V.; Williams, R. J.; Young, A.. 2007 A practical demonstration in modelling diclofenac and propranolol river water concentrations using a GIS hydrology model in a rural UK catchment. Environmental Pollution, 146 (1). 155-165. 10.1016/j.envpol.2006.05.037

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Abstract/Summary

An existing GIS hydrology water quality model, LF2000-WQX, was applied to predict the concentrations of the pharmaceuticals diclofenac and propranalol in catchments. As a practical exercise the predominantly rural Tamar (UK) catchment was chosen. Consumption, excretion, and fate data were used to estimate the pharmaceutical input load for the model. The predicted concentrations throughout most of the catchment were 1 ng/L or less under low flow (95th percentile) conditions. However, at a few locations, downstream of small sewage treatment plants, concentrations above 25 ng/L were predicted. This exercise shows that it is relatively straightforward to predict the concentrations of new and emerging organic microcontaminants in real catchments using existing GIS hydrology water quality models. Further testing will be required to establish their accuracy.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1016/j.envpol.2006.05.037
Programmes: CEH Programmes pre-2009 publications > Biogeochemistry > SE01B Sustainable Monitoring, Risk Assessment and Management of Chemicals > SE01.4 Monitoring and predicting the distribution of chemicals in terrestrial and freshwater ecosystems
CEH Programmes pre-2009 publications > Water > WA03 Developing strategic data and knowledge at a catchment scale to enable the wiser management of the water environment > WA03.3 Catchment scale modelling and assessment
CEH Sections: Acreman
Boorman
ISSN: 0269-7491
Additional Keywords: Pharmaceuticals, Rural, Effluent, Model, Tamar
NORA Subject Terms: Ecology and Environment
Hydrology
Chemistry
Date made live: 18 Dec 2007 15:52
URI: http://nora.nerc.ac.uk/id/eprint/1693

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