Title
Water quality, nutrients and the water framework directive in an agricultural region : the lower Humber Rivers, northern England
Description
Summary The water quality of rivers in the eastern part of the Humber Basin, northeastern England is described from a baseflow survey (11–13 August 2006) of a wide range of water quality determinands, and long-term nutrient records of the Environment Agency of England and Wales (EA). The baseflow survey shows that the rivers are oversaturated with respect to dissolved CO2 and calcite. They are sodium, potassium, lithium, boron, chloride, sulphate and fluoride bearing from a combination of atmospheric, within-catchment, agricultural and sewage effluent sources. Nitrate concentrations are uniform for rivers draining permeable bedrock but decrease for clay drainage areas. Soluble reactive phosphorus (SRP) concentrations are variable across the catchments reflecting the importance and variability of point sources and within-river processing. The EA data show annual oscillations for both NO3 and SRP concentrations. Average NO3 concentrations vary between 3.3 and 18.8 mgN/l and concentrations are low during the summer months. Average SRP concentrations vary between 23 and 1959 lg/l. Highest SRP concentrations generally occur when there is effluent input from sewage treatment works and agricultural point sources (e.g. overflow from slurry tanks, farmyard washings). Despite many of the rivers being nutrient rich, they are generally of good biological quality when point source inputs are not important.
URL
http://www.uea.ac.uk/env/cserge/research/relu/index
URL Description
ChREAM homepage
Language
English
Author
Colin Neal
Author
Margaret Neal
Author
Helen Davies

water quality; water framework directive; nutrients; humber; RELU; ChREAM

Volume number
350
Issue number
03 April 2017
Is this item peer reviewed?
Yes
ISSN
0022-1694
Copyright URL
http://www.elsevier.com/wps/find/authorsview.authors/fundingbodyagreements
Publisher
Elsevier
Date of publication
01 January 2008
Page reference
232-245
Is this item a pre-print or post-print?
Postprint
Title of journal
Journal of hydrology
Vancouver
Neal Colin et al. Water quality, nutrients and the water framework directive in an agricultural region : the lower Humber Rivers, northern England. Journal of hydrology 2008; 350 (3-4): 232-245.