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501A biological investigation of the affects of discharges from Meldon quarry on the West Okemont River - 8/08/89 and 20/09/89
502An investigation into the bacterial water quality of the River Umber, N. Devon : December 1996 : DEV/WQ/14/96
503An investigation into the elevated BOD levels at Brocken Bridge (R30H001) on the Barnstaple Yeo [DEV/E/20/95]
504An investigation to determine if Great Torrington STW is the cause of elevated copper and zinc concentrations in the River Torridge
505Options for development of an enhanced team culture in the NRA, using the Welsh Regional Technical Department as an example
506A report on the infaunal communities within Weston Bay in relation to the sewage outfall at Black Rock
507Bioccumulation of halogenated compounds by limpets and fucoid seaweeds in the vicinity by the Black Rock sewage outfall, Weston-Super-Mare
508Modelling the contribution from non-agricultural sources to nitrate pollution in the Sor Brook (Thames Region) (UC 3134)
509A desk top study into the probable causes of poor water quality at Higher Hollacombe Farm (RO5K013) on the Hollacombe Lake
510Health effects of sea bathing (WMI 9021) - Phase III final report to the Department of the Environment
511Procedure for quality assurance for RIVPACS compatible macro-invertebrate samples analysed to the taxonomic level needed for the BMWP-score system
512Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank
513The Economics of No-Spray Zones - a Study of the Risks and Benefits of Pesticide No-Spray Restrictions
514An audit of performance in the AQC inspection of standard biological macro-invertebrate samples in 2002 : The Environment Agency (C00158/31)
515Analysis of benthic macro-invertebrate samples collected by the NRA during 1989 and 1990 from various habitats in the River Delph
516Biological investigation of the impact of Ivybridge sewage treatment works discharge to the River Erme, May 1991
517Final report of the controlled cohort investigations into the health effects of bathing in sewage contaminated coastal waters
518An investigation into high concentrations of atrazine in surface waters and the increase in maize production in the Otter valley
519River Habitat Quality the physical character of rivers and streams in the UK and Isle of Man
520Investigation of flow distribution in a fracture zone at the Stripa mine, using the radar method, results and interpretation
521Biosensors for environmental monitoring : a review of capabilities and strategies for the future : consultant's report to the NRA
522An assessment of the causes of non-compliance with river quality standards within the River Tiddy catchment (1989-1991)
523Assessment of the feasibility of using image analysis in the oyster embryo-larval development and daphnia magna growth tests
524A review of the quality and status of the Suffolk and Essex estuaries and coastal waters : volume 1 : final draft
525An investigation into the frequency of discharge of three combined sewer overflows in the Afan/Kenfig catchment : TM/EAW/96/06