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726Some guidance on the use of digital environmental data
727Assessing and controlling the ecotoxicity of complex effluents
728Charging for discharges scheme : guidance to the power generation industry
729The Test catchment southern : recommendations for statutory water quality objectives
730The Worcestershire Stour catchment : recommendations for statutory water quality objectives
731An assessment of river water quality in the River Kenn
732A survey of ferruginous minewater impacts in the Welsh coalfields
733A survey of ferruginous minewater impacts in the Welsh coalfields
734Dioxins and the River Doe Lea : plain English report
735Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report
736Narrowboats on the Thames : useful hints and tips
737Locks and weirs on the river Thames : how do they work?
738Eel and elver studies in the Severn : interim report (256/6/ST)
739Fishery survey of the Bridgwater and Taunton Canal
740The quality of rivers and estuaries in Northumbria region 1990
741A guide to sustainable urban drainage : protecting the quality of our environment
742Air dispersion climate from the Castle Cement works at Ribblesdale
743Estuarial migration of Atlantic salmon in the river Dee (North Wales)
744Pesticide residues in fish taken from the Newlyn River (1992)
745A Review Of The Impact Of Microbiological Contaminants In Groundwater
746Doe Lea restoration study : the work of WRc
747The NRA in business : annual review and summary accounts 1993-94
748Environmental statement for the River Wandle flood alleviation scheme contract one (C1)
749Cyanobacteria (blue-green algae) in the south west region 1989
750Toxic blue-green algae : a report by the National Rivers Authority