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526An investigation to determine if Great Torrington STW is the cause of elevated copper and zinc concentrations in the River Torridge
527Options for development of an enhanced team culture in the NRA, using the Welsh Regional Technical Department as an example
528A preliminary investigation into the extent of saline ingress into Curry Moor from the River Tone, January 1994
529A report on the infaunal communities within Weston Bay in relation to the sewage outfall at Black Rock
530Bioccumulation of halogenated compounds by limpets and fucoid seaweeds in the vicinity by the Black Rock sewage outfall, Weston-Super-Mare
531Modelling the contribution from non-agricultural sources to nitrate pollution in the Sor Brook (Thames Region) (UC 3134)
532A desk top study into the probable causes of poor water quality at Higher Hollacombe Farm (RO5K013) on the Hollacombe Lake
533Health effects of sea bathing (WMI 9021) - Phase III final report to the Department of the Environment
534Procedure for quality assurance for RIVPACS compatible macro-invertebrate samples analysed to the taxonomic level needed for the BMWP-score system
535Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank
536The Economics of No-Spray Zones - a Study of the Risks and Benefits of Pesticide No-Spray Restrictions
537An audit of performance in the AQC inspection of standard biological macro-invertebrate samples in 2002 : The Environment Agency (C00158/31)
538Analysis of benthic macro-invertebrate samples collected by the NRA during 1989 and 1990 from various habitats in the River Delph
539Biological investigation of the impact of Ivybridge sewage treatment works discharge to the River Erme, May 1991
540Final report of the controlled cohort investigations into the health effects of bathing in sewage contaminated coastal waters
541River Habitat Quality the physical character of rivers and streams in the UK and Isle of Man
542Investigation of flow distribution in a fracture zone at the Stripa mine, using the radar method, results and interpretation
543Biosensors for environmental monitoring : a review of capabilities and strategies for the future : consultant's report to the NRA
544An assessment of the causes of non-compliance with river quality standards within the River Tiddy catchment (1989-1991)
545Assessment of the feasibility of using image analysis in the oyster embryo-larval development and daphnia magna growth tests
546A review of the quality and status of the Suffolk and Essex estuaries and coastal waters : volume 1 : final draft
547An investigation into the frequency of discharge of three combined sewer overflows in the Afan/Kenfig catchment : TM/EAW/96/06
548NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group
549Options for transfer of water from the River Trent and reservoir storage at Great Bradley : technical summary of the feasibility report
550The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England;