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6426Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank
6427Mesotrophic rivers in Anglian region : phase 1 June 1994
6428Chemical Techniques Manual
6429Crangonyx pseudogracilis and Gammarus pulex
6430A report on the investigation into water contamination at Hauxton, Cambrigeshire
6431Fate and transport of phage and viruses in UK Permo-Triassic sandstone aquifers
6432Aldrin and dieldrin concentrations in the Newlyn catchment during 1991 an interim report
6433Waterways Breeding Bird Survey: progress and population trends: 1998
6434A partnership in environmental protection
6435Control of substances hazardous to health : (COSHH) regs 1988. Interpretation and implementation
6436Development of tools for assessing genotoxicity
6437Environment Agency special waste statistics 1994-7
6438A review of hazardous substances
6439Catchment inventories : a summary report
6440Control of substances hazardous to health regulations 1988 : handbook of assessed general products
6441EC dangerous substances directive : formal monitoring programme 1994
6442Report on EC directive compliance 1996
6443Overseas Approaches to Setting River Flow Objective
6444Scenarios for the operational implementation of remote sensing of snow by satellites : interim report (207/3/N)
6445Gandolf Thunderstorm Warning Project
6446Monitoring of the River Burn upstream and downstream of Burnham Market sewage treatment works 1999
6447Alternative Farming Methods A Study of the Effects of an Integrated Arable Mgment System on Levels of Herbicide and Nutrients Reaching 'Controlled Waters'
6448Upper Fal Estuary urban waste water treatment directive sensitive area (eutrophic) designation : final draft report
6449Water wise : a water saving guide for NRA offices
6450Annual classification of river water quality 1992