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401An assessment of the impact of Berkhamsted and Maple Lodge STWs on the Grand Union canal based on macroinvertebrate surveys
402An Assessment of Cormorant Depredation on Stillwater Coarse Fish Populations in the Lea and Colne Valleys of the Thames Catchment
403Water framework directive : guiding principles on the technical requirements (summary) : accompanying summary to the Environment Agency consultation document
404Options for development of an enhanced team culture in the NRA, using the Welsh Regional Technical Department as an example
405Health effects of sea bathing (WMI 9021) - Phase III final report to the Department of the Environment
406Procedure for quality assurance for RIVPACS compatible macro-invertebrate samples analysed to the taxonomic level needed for the BMWP-score system
407Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank
408The Economics of No-Spray Zones - a Study of the Risks and Benefits of Pesticide No-Spray Restrictions
409An audit of performance in the AQC inspection of standard biological macro-invertebrate samples in 2002 : The Environment Agency (C00158/31)
410Biological investigation of the impact of Ivybridge sewage treatment works discharge to the River Erme, May 1991
411River Habitat Quality the physical character of rivers and streams in the UK and Isle of Man
412Investigation of flow distribution in a fracture zone at the Stripa mine, using the radar method, results and interpretation
413Biosensors for environmental monitoring : a review of capabilities and strategies for the future : consultant's report to the NRA
414Assessment of the feasibility of using image analysis in the oyster embryo-larval development and daphnia magna growth tests
415A review of the quality and status of the Suffolk and Essex estuaries and coastal waters : volume 1 : final draft
416Contaminants entering the sea : a report on contaminant loads entering the seas around England and Wales 1990-1993
417NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group
418Land use assessment of non-tidal main rivers in the southern region of the National Rivers Authority : report EX 2922
419The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England;
420PhD Research. Gary Stephen Rushworth. The role of aquatic macroinvertebrates within reedswamps
421POLICY & PRACTICE FOR THE PROTECTION OF GROUNDWATER - DRAWINGS
422The River Eden Demonstration Test Catchment (DTC) Data
4231967 - IBP Lake George, Uganda - starting to build the bedroom block
424Environmental snapshot for the East of England [version 1]
425The regulation of salmon angling in Great Britain