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176Swords water quality study - phase 1 : water quality of the Thames
177An investigation of the water quality in three Plymouth catchment streams
178Malodours and discolouration on the Wool Brook Sidmouth
179The River Arun catchment management plan : action plan
180The Mersey Estuary 1992 surveys : summary of results
181An investigation to determine the water quality of Churchstanton Stream
182Proposals for statutory water quality objectives : report of the National Rivers Authority
183Conservation in the Severn-Trent Region (NRA Severn-Trent 57)
184Development of an Estuarine Classification Scheme for the Water Framework Directive
185Summary of monitoring activities on the blackwater estuary
186Macroinvertebrates in the Kennet catchment : Part 1 - water quality monitoring
187Guide to the use of control charts in water analysis
188A Review of Methods for Assessing the Hydromorphology of Lakes
189A survey of trace metals in biota of the Mersey estuary 1993
190An assessment of the NRA algal growth inhibition test : 1993/4
191Results of the NRA Welsh regional marine bioaccumulation programme 1991-1993 : SE/EAU/94/8
192Results of the NRA Welsh regional marine bioaccumulation programme 1991-1995 : SE/EAU/95/9
193A second stage evaluation of the Grant YSI3815 Water Logger
194The Test catchment southern : recommendations for statutory water quality objectives
195The Worcestershire Stour catchment : recommendations for statutory water quality objectives
196An assessment of river water quality in the River Kenn
197Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report
198The quality of rivers and estuaries in Northumbria region 1990
199Cyanobacteria (blue-green algae) in the south west region 1989
200Toxic blue-green algae : a report by the National Rivers Authority