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26The distribution of nutrients and phytoplankton in the North-East Irish Sea
27The development of new techniques for the monitoring of ammonia in water
28Anglian region state of the environment report : the IPC perspective
29The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Chalk Of Berkshire And The Chilterns
30Assessment of the impact of discharges from Meldon Quarry on the water quality of the West Okement River
31Assessment of the performance of the BMWP scoring system against biological targets and the determination of significant change
32The National Rivers Authority's response to the sixteenth report of the Royal Commission on Environmental Pollution on freshwater quality
33Information [on the NRA Anglian Region]
34Investigation to determine if the soakaway from the Stowford Farm caravan site is having an impact on the biological community of the Colam stream
35River water quality in the Midlands 1998
36Water Quality of the Humber Estuary 1986
37Devon area internal report - the kingsbridge estuary - survey of the benthic microinvertebrate infauna (october 1990) for the proposed classification of estuaries in the south western region
38River water quality in the Midlands 1997
39Synoptic State of the Environment Monitoring
40Hydropower developments and the National Rivers Authority
41Phosphate in the cut-off channel
42Rivers of the Isle of Wight
43Environmental issues in the Midlands 1995/96
44Pollution control on the River Alt
45Achieving the quality (Bilingual) : Sicrhau Ansawdd (Bilingual)
46Clouding: the issue. An appraisal of the effects of turbidity in aquatic systems
47The Possible effects on migratory fish in the River Dee of increased water abstraction
48Technical Summary - Appraisal of the Impact of Multiple Retailers Quality Assurance Schemes on the Environment
49The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Chalk Of Lincolnshire;
50Project record for the review and statistical analysis of the baseline coastal waters survey