51 | Fish and the Ecological Assessment of Lakes and Rivers for the Water Framework Directive |
52 | Technical Summary - Appraisal of the Impact of Multiple Retailers Quality Assurance Schemes on the Environment |
53 | Ecological effects of discharges from watercress farms on the chalk-streams of the NRA Wessex Region |
54 | Investigate the feasibility of applying quality methods and standards within the water resources function. |
55 | Evaluation of the effectiveness of the Water Fringe Option Scheme on Environmental Quality |
56 | The environmental impact of the foot and mouth disease outbreak: and interim assessment |
57 | Riverside litter : results of the 1990 campaign and a strategy for the future |
58 | National marine baseline survey 1995 : littoral cell 3 : the Wash to the Thames |
59 | Investigation of the water quality in the Buckland stream up and downstream of East/West Buckland |
60 | The Effect of Atrazine Exposure on the Timing of Salmon (Salmo salar L.) Smolt Emigration |
61 | Biological assessment of the effects of Ivybridge Sewage Treatment Works on the River Erme |
62 | A Status Report on the Direct Oxygenation of the Tywi Estuary - October 1989 |
63 | An investigation into the effects of Alton sewage works on the River Wey North |
64 | 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 |
65 | Implementation of the EC freshwater fish directive : water quality requirements for the support of fish life : report of the National Rivers Authority |
66 | Biological Assessment Methods: Controlling the Quality of Biological Data. Package 1 The variability of data used for assessing the biological condition of rivers |
67 | The effects of ammonia in discharges from Hogsmill Valley sewage treatment works on the water quality of the River Thames at Teddington |
68 | 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 |
69 | 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 |
70 | 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 |
71 | (3) The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England; |
72 | Guidance notes for local planning authorities on the methods of protecting the water environment through development plans |
73 | The development of biomanipulation techniques and control of phosphorus release from sediments (475/1/A) : LIFE project : restoration of the Norfolk Broads |
74 | Continuous water quality monitoring results collected from the river Torridge at Cockshilhay and Beam Bridge for the EU UWWTD |
75 | Water quality objectives: procedures used by the NRA for the purpose of surface waters river ecosystem) (classification) regulations 1994 |