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501Mercury, methylmercury and copper in the River Yare, Norfolk : summary of a report to the National Rivers Authority, Anglian Region
502Second interim report on the environmental impacts of the drought on Yorkshire's rivers April 1995 to April 1996
503Interim report on the environmental impacts of the drought on Yorkshire rivers April 1995 to April 1996
504A report on the 1992 strategic stock assessment survey of the upper Eden catchment with particular reference to salmonids
505Conservation and recreation : the Wye challenge : towards a management strategy for the River Wye : summary report (bilingual)
506Implementation of environmental accounting : the way ahead for a new "green agency" : submitted for the Open University Open Business School MBA
507Regulation guidance and direction making powers in the Environment Act 1995 in relation to the Environment Agency
508Opportunities for change : the Environment Agency's response to the government consultation paper on a revised UK strategy for sustainable development
509An assessment of the impact of Berkhamsted and Maple Lodge STWs on the Grand Union canal based on macroinvertebrate surveys
510An Assessment of Cormorant Depredation on Stillwater Coarse Fish Populations in the Lea and Colne Valleys of the Thames Catchment
511A biological investigation of the affects of discharges from Meldon quarry on the West Okemont River - 8/08/89 and 20/09/89
512An investigation into the bacterial water quality of the River Umber, N. Devon : December 1996 : DEV/WQ/14/96
513An investigation into the elevated BOD levels at Brocken Bridge (R30H001) on the Barnstaple Yeo [DEV/E/20/95]
514An investigation to determine if Great Torrington STW is the cause of elevated copper and zinc concentrations in the River Torridge
515Options for development of an enhanced team culture in the NRA, using the Welsh Regional Technical Department as an example
516A preliminary investigation into the extent of saline ingress into Curry Moor from the River Tone, January 1994
517A report on the infaunal communities within Weston Bay in relation to the sewage outfall at Black Rock
518Bioccumulation of halogenated compounds by limpets and fucoid seaweeds in the vicinity by the Black Rock sewage outfall, Weston-Super-Mare
519A desk top study into the probable causes of poor water quality at Higher Hollacombe Farm (RO5K013) on the Hollacombe Lake
520Health effects of sea bathing (WMI 9021) - Phase III final report to the Department of the Environment
521Procedure for quality assurance for RIVPACS compatible macro-invertebrate samples analysed to the taxonomic level needed for the BMWP-score system
522Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank
523The Economics of No-Spray Zones - a Study of the Risks and Benefits of Pesticide No-Spray Restrictions
524Analysis of benthic macro-invertebrate samples collected by the NRA during 1989 and 1990 from various habitats in the River Delph
525Biological investigation of the impact of Ivybridge sewage treatment works discharge to the River Erme, May 1991