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6351Environmental Quality Standards for Dissolved Oxygen
6352Study into the effect of Chertsey STW on the North Arm of the River Bourne
6353The evaluation of a pHOX model 962 hand-held dissolved oxygen meter (220/28/T)
6354The evaluation of a WTW model OXI 196 hand-held dissolved oxygen meter (220/29/T)
6355The evaluation of a YSI model 58 hand-held dissolved oxygen meter (220/24/T)
6356The evaluation of an ABB Kent-Taylor model 7135 hand-held dissolved oxygen meter (220/30/T)
6357Determining The Causes Of 'Apparent Eutrophication' Effects
63581992 survey of bathing water quality : final draft report
6359Ecotoxocological impact of ferric sulphate on chironomid cultures and profundal reservoir communities
6360Loe Pool urban waste water treatment directive sensitive area (eutrophic) designation : final draft report
6361Phosphorus in the Thames catchment
6362River nar eutrophication study aquatic macrophyte survey
6363The Management of blue-green algal blooms in South-East Australia : a report on the visit to Australia by MJ Pearson and AJD Ferguson in January/February 1993
6364A litter assessment of two major tributaries of the Taff, the Cynon and the Rhondda : surveyed March - April 1990
6365River Medway : a user's guide
6366Masonry bunds for oil storage tanks
6367Field validation of algal toxin test kit : progress report for period August 1992 - October 1992
6368Review of water quality instrumentation : April 1995
6369A second stage evaluation of the Grant YSI3815 Water Logger
6370Alt Crossens action plan : October 1996
6371Acid waters in Wales : appraisal of strategic options : draft report
6372Analytical Methods for Cationic Polyacrylamides at Levels of Environmental Significance
6373Assessment of low flow conditions. Phase 2 (237/2/T) : evaluation of methodology : draft final R and D Note
6374Assessment of the feasibility of using image analysis in the oyster embryo-larval development and daphnia magna growth tests
6375Audit report on the 1995 GQA biological survey