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451The effects of ammonia in discharges from Hogsmill Valley sewage treatment works on the water quality of the River Thames at Teddington
452Audit surveys in the NRA Thames region : a report on the surveys carried out in 1992/93 to assess the retention and enhancement of wildlife habitats during routine dredging operations
453Measures to safeguard public water supplies : a second report to the Secretary of State for the Environment on the drought of 1995
454Preliminary assessment of the ability of Restormel fish counter to enumerate the passage of migratory salmonids on the River Fowey : Cornwall Area Fisheries Science Team
455The Movements of Salmon (Salmo salar L.) and Sea Trout (Salmo trutta L.) Smolts in the Lower River and Estuary of the River Conwy, North Wales
456Report on the results of a comparison of data from two surveys of the microfauna of the wash carried out in 1991 and 1993
457Factual report on the boreholes and installation of standpipes for the combined investigations in connection with the East Ruston common SSSI Alleviation Scheme
458A study of the mayfly parasite Spiriopsis adipophila, Arvy and Peters (1972) (=Sprininella adipophila, Arvy and Delage 1966) in Ephemera danica from the River Pang, a tributary of the River Thames
459Inferences on the pollution status of the Thames estuary from the macrobenthic community structure : National Rivers Authority Thames Region, Biology, Thames Estuary Benthic Programme
460A review of available information sources for assessing the hazards and risks of chemical substances in the environment. Final report : recommendations for the acquistion of certain sources of environmental data
461Warming to the idea : meeting the challenge of climate change in the South West : summary report : south west region climate change impacts scoping study
462A field guide to the British seaweeds : as required for assistance in the classification of water bodies under the Water Framework Directive
463Assessment of Ivybridge mobile monitoring station and investigation of the water quality of the River Erme and the effect of Ivybridge Sewage Treatment works final effluent
464Investigations into the status of fisheries, biological and water quality in the River Pelenna catchment, prior to the treatment of discharges from abandoned coal mines : PL/EAW/95/3
465Meiofaunal assemblages of the Thames Estuary, April 1989-March 1990 : modules I-III : a study of the meiofaunal communities present in sediment samples collected by the National Rivers Authority, Thames Region
466Survey of the biological quality of creek systems in the outer Thames Estuary, with special reference to the impact of STW and landfill site discharges
467The behaviour of adult salmon (Salmo salar L.) in the River Tay as determined by radio telemetry
468Darwell Transfer Scheme. Final Report Part II. Location of the draw-off tower in the Darwell Reservoir
469Radioactivity in the environment : a summary and radiological assessment of the Environment Agency's monitoring programmes : report for 1996
470The biology of the sea trout. Summary of a symposium held at Plas Menai 24-26 October 1984
471Time of travel for the Greadon Farm pollution incident on the Upper Torridge of 19th August 1997 (1997)
472An estimated map of NO2 concentration in the Midlands region : a report produced for the Environment Agency
473The environmental impact of sewage discharges to the Salcombe Estuary, South Devon, from Anchor Watch, Cliff Raod, Salcombe
474Water conservation planning in the USA : meeting organised by the Environment Agency and CIWEM, 14th June 1996, CBI
475Investigation into the effect of sewage disinfection on the bioaccumulation of chloroform, bromoform, dibromochloromethane and dichlorobromomethane by fucoid seaweeds