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551An investigation to determine if Great Torrington STW is the cause of elevated copper and zinc concentrations in the River Torridge
552Options for development of an enhanced team culture in the NRA, using the Welsh Regional Technical Department as an example
553A preliminary investigation into the extent of saline ingress into Curry Moor from the River Tone, January 1994
554A report on the infaunal communities within Weston Bay in relation to the sewage outfall at Black Rock
555Bioccumulation of halogenated compounds by limpets and fucoid seaweeds in the vicinity by the Black Rock sewage outfall, Weston-Super-Mare
556Modelling the contribution from non-agricultural sources to nitrate pollution in the Sor Brook (Thames Region) (UC 3134)
557A desk top study into the probable causes of poor water quality at Higher Hollacombe Farm (RO5K013) on the Hollacombe Lake
558Health effects of sea bathing (WMI 9021) - Phase III final report to the Department of the Environment
559Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank
560The Economics of No-Spray Zones - a Study of the Risks and Benefits of Pesticide No-Spray Restrictions
561Biological investigation of the impact of Ivybridge sewage treatment works discharge to the River Erme, May 1991
562Final report of the controlled cohort investigations into the health effects of bathing in sewage contaminated coastal waters
563An investigation to determine the source of high levels of gamma-HCH in the Newlyn River during summer 1989
564An investigation into high concentrations of atrazine in surface waters and the increase in maize production in the Otter valley
565River Habitat Quality the physical character of rivers and streams in the UK and Isle of Man
566Investigation of flow distribution in a fracture zone at the Stripa mine, using the radar method, results and interpretation
567Biosensors for environmental monitoring : a review of capabilities and strategies for the future : consultant's report to the NRA
568A review of the quality and status of the Suffolk and Essex estuaries and coastal waters : volume 1 : final draft
569An investigation into the frequency of discharge of three combined sewer overflows in the Afan/Kenfig catchment : TM/EAW/96/06
570Contaminants entering the sea : a report on contaminant loads entering the seas around England and Wales 1990-1993
571NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group
572Options for transfer of water from the River Trent and reservoir storage at Great Bradley : technical summary of the feasibility report
573The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England;
574PhD Research. Gary Stephen Rushworth. The role of aquatic macroinvertebrates within reedswamps
575POLICY & PRACTICE FOR THE PROTECTION OF GROUNDWATER - DRAWINGS