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151The evaluation of an orion ammonium ion selective electrode (220/15/T)
152Investigation of mercury contamination in the Red River catchment, West Cornwall
153The Ribble Estuary 1992 surveys : summary of results
154Anthropogenic Impacts on the Hydrology of Rivers and Lochs
155Operational mechanisms for the protection and enhancement of headwaters
156The Mersey Estuary 1992 surveys : summary of results
157Continuous water quality monitoring results for the Upper Tamar
158A Review of Methods for Assessing the Hydromorphology of Lakes
159An assessment of river water quality in the River Kenn
160A second stage evaluation of the Grant YSI3815 Water Logger
161Wash zone report. Part 1 : the Wash NRA monitoring review
162Distribution of Azolla in the Great Ouse catchment
163Non-compliance with water quality objectives on the Croyde stream (upper catchment)
164Our Midlands environment : the Environment Agency in action
165The quality of rivers in England and Wales (1990 to 1995)
166Proposals for statutory water quality objectives : report of the National Rivers Authority
167Non-compliance of the Bidwell Brook with river quality objectives
168The control of effluent discharges by a direct toxicity assessment (DTA) approach
169River Axe Fish Study - Evaluation of Fish Movements in the Estuary
170Regulation of dioxin releases from the Runcorn operations of ICI and EVC
171Identification of water quality problems in the Strat and Neet catchments
172Toxicity Reduction Evaluation Case Summary for the Pulp and Paper Industry
173Method for the assessment of river water quality using benthic macroinvertebrates
174Swords water quality study - phase 1 : water quality of the Thames
175The greening of Grasmere: its plankton periodicity in 1988