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5276Quarterly Review : April - December 1991 NRA Southern Region
5277Quarterly Review : April - June 1991 NRA Southern Region
5278Quarterly review : Southern region 1992/93 Apr - Dec 1992
5279River Taff catchment management plan : action plan (bilingual) : 1996
5280Development of Environmental Standards (Water Resources) Stage 1: Identification of Hydro-morphological parameters to which the aquatuc ecosystems is sensitive
5281Further Validation of PHABSIM for the Habitat Requirements of Salmonid Fish
5282Groundwater storage in British aquifers : chalk - Drawings
5283Groundwater storage in British aquifers: chalk. Appendices
5284Assessment of low flow conditions : phase 1 - proposed methodology. Final report
5285Recreation and amenity surveys of identified low flow rivers. Part 1 : survey report
5286Dinobryon,
5287Factors Affecting Coarse Fish Recruitment: Phase II - Examination and Analysis of Existing Environment Agency Data
5288Hydrometric report and catalogue 1990 : National Rivers Authority, Severn-Trent Region
5289Large Woody Debris In British Headwater Rivers: Main Report
5290Biosensors for environmental monitoring : a review of capabilities and strategies for the future : consultant's report to the NRA
5291Rapid Assessment of Physical Habitat Sensitivity to Abstraction (RAPHSA)
5292Coastal baseline survey 1990-93. Part 1 : nutrients
5293Environmental Quality Standards for Dissolved Oxygen
5294The evaluation of a pHOX model 962 hand-held dissolved oxygen meter (220/28/T)
5295The evaluation of a WTW model OXI 196 hand-held dissolved oxygen meter (220/29/T)
5296The evaluation of a YSI model 58 hand-held dissolved oxygen meter (220/24/T)
5297The evaluation of an ABB Kent-Taylor model 7135 hand-held dissolved oxygen meter (220/30/T)
5298Determining The Causes Of 'Apparent Eutrophication' Effects
52991992 survey of bathing water quality : final draft report
5300Ecotoxocological impact of ferric sulphate on chironomid cultures and profundal reservoir communities