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51Humber estuary : state of the environment 1998
52Pollution control on the River Alt
53Achieving the quality (Bilingual) : Sicrhau Ansawdd (Bilingual)
54Clouding: the issue. An appraisal of the effects of turbidity in aquatic systems
55The Possible effects on migratory fish in the River Dee of increased water abstraction
56Technical Summary - Appraisal of the Impact of Multiple Retailers Quality Assurance Schemes on the Environment
57The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Chalk Of Lincolnshire;
58Project record for the review and statistical analysis of the baseline coastal waters survey
59Riverside litter : results of the 1990 campaign and a strategy for the future
60An investigation into the water quality of the River Waldon during wet weather
61Investigation into the chemicals present and entering the Stover Lake, Stover Country Park
62Investigation into the 1999 failure of the European Community bathing waters directive at Beer beach (2001)
63Investigation of the impact on water quality of the SWW Teign estuary sewerage trenching activity
64The Effect of Atrazine Exposure on the Timing of Salmon (Salmo salar L.) Smolt Emigration
65The environmental impact of the foot and mouth disease outbreak: and interim assessment
66Biological assessment of the effects of Ivybridge Sewage Treatment Works on the River Erme
67Biological investigation into the impact of the storm overflow at Middle Marwood Sewage Treatment Works
68Ecological effects of discharges from watercress farms on the chalk-streams of the NRA Wessex Region
69Investigation into the impact of Henstridge sewage treatment works on the River Umber, North Devon
70Further surveys to elucidate the distribution of the fine-lined pea mussel Pisidium tenuilineatum Stelfox, 1918
71The Distribution Of Phytoplankton And Nutrients In The North East Irish Sea During 1997;
72The Distribution Of Phytoplankton And Nutrients In The North East Irish Sea During 1996;
73Swords water quality study - phase 1 : modelling the water quality of the River Thames
74National marine baseline survey 1995 : littoral cell 3 : the Wash to the Thames
75The quality of rivers, canals and estuaries in England and Wales : report of the 1990 survey