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76The Effect of Atrazine Exposure on the Timing of Salmon (Salmo salar L.) Smolt Emigration
77The Distribution of Phytoplankton and Nutrients in the North East Irish Sea During 1998
78Biological assessment of the effects of Ivybridge Sewage Treatment Works on the River Erme
79The impact of land use on salmonids (Report 30) : a study of the River Torridge catchment
80A Status Report on the Direct Oxygenation of the Tywi Estuary - October 1989
81An investigation into the effects of Alton sewage works on the River Wey North
82Investigation into the impact of Henstridge sewage treatment works on the River Umber, North Devon
83Report for Anglian Water, NRA Unit on the uses of the Orwell and the Stour Estuaries and the use of the mathematical model to derive long term consent limits for all inputs to Orwell Estuary
84Report on the national marine analytical quality control scheme 1993/94 : presented to the 18th October 1994 meeting of the Marine Pollution Monitoring Management Group
85Biological Assessment Methods: Controlling the Quality of Biological Data. Package 1 The variability of data used for assessing the biological condition of rivers
86The effects of ammonia in discharges from Hogsmill Valley sewage treatment works on the water quality of the River Thames at Teddington
87Assessment of Ivybridge mobile monitoring station and investigation of the water quality of the River Erme and the effect of Ivybridge Sewage Treatment works final effluent
88Investigations into the status of fisheries, biological and water quality in the River Pelenna catchment, prior to the treatment of discharges from abandoned coal mines : PL/EAW/95/3
89Meiofaunal assemblages of the Thames Estuary, April 1989-March 1990 : modules I-III : a study of the meiofaunal communities present in sediment samples collected by the National Rivers Authority, Thames Region
90(3) The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England;
91Investigation into the 1999 failure of the European Community bathing waters directive at Teignmouth Town Beach (2001)
92Report on the quality of bathing waters in Hampshire, Sussex, Kent and the Isle of Wight : 1992 bathing season
93Guidance notes for local planning authorities on the methods of protecting the water environment through development plans
94The development of biomanipulation techniques and control of phosphorus release from sediments (475/1/A) : LIFE project : restoration of the Norfolk Broads
95Continuous water quality monitoring results collected from the river Torridge at Cockshilhay and Beam Bridge for the EU UWWTD
96Water quality objectives: procedures used by the NRA for the purpose of surface waters river ecosystem) (classification) regulations 1994
97Interim report on the environmental impacts of the drought on Yorkshire rivers April 1995 to April 1996
98An assessment of the impact of Berkhamsted and Maple Lodge STWs on the Grand Union canal based on macroinvertebrate surveys
99An investigation into the bacterial water quality of the River Umber, N. Devon : December 1996 : DEV/WQ/14/96
100An investigation into the elevated BOD levels at Brocken Bridge (R30H001) on the Barnstaple Yeo [DEV/E/20/95]