76 | Swords water quality study - phase 1 : modelling the water quality of the River Thames |
77 | National marine baseline survey 1995 : littoral cell 3 : the Wash to the Thames |
78 | Investigation of the water quality in the Buckland stream up and downstream of East/West Buckland |
79 | The Effect of Atrazine Exposure on the Timing of Salmon (Salmo salar L.) Smolt Emigration |
80 | Further surveys to elucidate the distribution of the fine-lined pea mussel Pisidium tenuilineatum Stelfox, 1918 |
81 | The Distribution of Phytoplankton and Nutrients in the North East Irish Sea During 1998 |
82 | Biological assessment of the effects of Ivybridge Sewage Treatment Works on the River Erme |
83 | The impact of land use on salmonids (Report 30) : a study of the River Torridge catchment |
84 | A Status Report on the Direct Oxygenation of the Tywi Estuary - October 1989 |
85 | An investigation into the effects of Alton sewage works on the River Wey North |
86 | Investigation into the impact of Henstridge sewage treatment works on the River Umber, North Devon |
87 | Report on the national marine analytical quality control scheme 1993/94 : presented to the 18th October 1994 meeting of the Marine Pollution Monitoring Management Group |
88 | Implementation of the EC freshwater fish directive : water quality requirements for the support of fish life : report of the National Rivers Authority |
89 | Biological Assessment Methods: Controlling the Quality of Biological Data. Package 1 The variability of data used for assessing the biological condition of rivers |
90 | The effects of water resources management on the rivers Bure, Wensum and Nar in North Norfolk : Final project report to the National Rivers Authority. July 1994 |
91 | The effects of ammonia in discharges from Hogsmill Valley sewage treatment works on the water quality of the River Thames at Teddington |
92 | Assessment 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 |
93 | Investigations 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 |
94 | Meiofaunal 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 |
95 | (3) The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England; |
96 | Investigation into the 1999 failure of the European Community bathing waters directive at Teignmouth Town Beach (2001) |
97 | Report on the quality of bathing waters in Hampshire, Sussex, Kent and the Isle of Wight : 1992 bathing season |
98 | Guidance notes for local planning authorities on the methods of protecting the water environment through development plans |
99 | The development of biomanipulation techniques and control of phosphorus release from sediments (475/1/A) : LIFE project : restoration of the Norfolk Broads |
100 | Water quality objectives: procedures used by the NRA for the purpose of surface waters river ecosystem) (classification) regulations 1994 |