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476Bioccumulation of halogenated compounds by limpets and fucoid seaweeds in the vicinity by the Black Rock sewage outfall, Weston-Super-Mare
477Modelling the contribution from non-agricultural sources to nitrate pollution in the Sor Brook (Thames Region) (UC 3134)
478A desk top study into the probable causes of poor water quality at Higher Hollacombe Farm (RO5K013) on the Hollacombe Lake
479Health effects of sea bathing (WMI 9021) - Phase III final report to the Department of the Environment
480Procedure for quality assurance for RIVPACS compatible macro-invertebrate samples analysed to the taxonomic level needed for the BMWP-score system
481Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank
482The Economics of No-Spray Zones - a Study of the Risks and Benefits of Pesticide No-Spray Restrictions
483An audit of performance in the AQC inspection of standard biological macro-invertebrate samples in 2002 : The Environment Agency (C00158/31)
484Biological investigation of the impact of Ivybridge sewage treatment works discharge to the River Erme, May 1991
485Final report of the controlled cohort investigations into the health effects of bathing in sewage contaminated coastal waters
486An investigation into high concentrations of atrazine in surface waters and the increase in maize production in the Otter valley
487River Habitat Quality the physical character of rivers and streams in the UK and Isle of Man
488Investigation of flow distribution in a fracture zone at the Stripa mine, using the radar method, results and interpretation
489Biosensors for environmental monitoring : a review of capabilities and strategies for the future : consultant's report to the NRA
490Assessment of the feasibility of using image analysis in the oyster embryo-larval development and daphnia magna growth tests
491A review of the quality and status of the Suffolk and Essex estuaries and coastal waters : volume 1 : final draft
492An investigation into the frequency of discharge of three combined sewer overflows in the Afan/Kenfig catchment : TM/EAW/96/06
493Contaminants entering the sea : a report on contaminant loads entering the seas around England and Wales 1990-1993
494NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group
495The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England;
496PhD Research. Gary Stephen Rushworth. The role of aquatic macroinvertebrates within reedswamps
497POLICY & PRACTICE FOR THE PROTECTION OF GROUNDWATER - DRAWINGS
498The River Eden Demonstration Test Catchment (DTC) Data
4991967 - IBP Lake George, Uganda - starting to build the bedroom block
500The regulation of salmon angling in Great Britain