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76Riverside litter : results of the 1990 campaign and a strategy for the future
77Swords water quality study - phase 1 : modelling the water quality of the River Thames
78National marine baseline survey 1995 : littoral cell 3 : the Wash to the Thames
79Investigation of the water quality in the Buckland stream up and downstream of East/West Buckland
80The Effect of Atrazine Exposure on the Timing of Salmon (Salmo salar L.) Smolt Emigration
81Further surveys to elucidate the distribution of the fine-lined pea mussel Pisidium tenuilineatum Stelfox, 1918
82The Distribution of Phytoplankton and Nutrients in the North East Irish Sea During 1998
83Biological assessment of the effects of Ivybridge Sewage Treatment Works on the River Erme
84The impact of land use on salmonids (Report 30) : a study of the River Torridge catchment
85A Status Report on the Direct Oxygenation of the Tywi Estuary - October 1989
86An investigation into the effects of Alton sewage works on the River Wey North
87Investigation into the impact of Henstridge sewage treatment works on the River Umber, North Devon
88Report 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
89Report on the national marine analytical quality control scheme 1993/94 : presented to the 18th October 1994 meeting of the Marine Pollution Monitoring Management Group
90Implementation of the EC freshwater fish directive : water quality requirements for the support of fish life : report of the National Rivers Authority
91Biological Assessment Methods: Controlling the Quality of Biological Data. Package 1 The variability of data used for assessing the biological condition of rivers
92The 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
93The effects of ammonia in discharges from Hogsmill Valley sewage treatment works on the water quality of the River Thames at Teddington
94Assessment 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
95Investigations 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
96Meiofaunal 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
97(3) The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England;
98Investigation into the 1999 failure of the European Community bathing waters directive at Teignmouth Town Beach (2001)
99Report on the quality of bathing waters in Hampshire, Sussex, Kent and the Isle of Wight : 1992 bathing season
100Guidance notes for local planning authorities on the methods of protecting the water environment through development plans