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6376Monitoring of freshwaters for E.C. dangerous substances list 1 and list 2, 1990
6377An assessment of the NRA algal growth inhibition test : 1993/4
6378Carnon River EC dangerous substance directive failure : final draft report
6379Red River (R23A003) EC Dangerous Substance Directive failure 1994 : May 1996. COR/96/004
6380Zinc in estuaries (Note 390)
6381Results of the NRA Welsh regional marine bioaccumulation programme 1991-1993 : SE/EAU/94/8
6382Results of the NRA Welsh regional marine bioaccumulation programme 1991-1995 : SE/EAU/95/9
6383Wheal Jane : a clear way forward
6384A report on the investigation of the Taff litter problem
6385Abandoned mines and the water environment : report of the National Rivers Authority
6386Pilot environmental audit : NRA Darlington district office : Northumbria and Yorkshire region
6387The impact of land use on salmonids (Report 30) : a study of the River Torridge catchment
6388A review of the industrial uses of continuous monitoring systems : minerals industry processes
6389Anglian region state of the environment report : the IPC perspective
6390Aquatic Litter Information System - Using Digital Technologies
6391Aquatic pesticide pollution incidents in England and Wales - 1994 - 1995
6392Attenuation of nitrate in the sub-surface environment
6393Catchment management plan : South Essex action plan, June 1996
6394Endocrine Disruption in the Marine Environment
6395Guidance Manual for Constructed Wetlands
6396Inferences on the pollution status of the Thames estuary from the macrobenthic community structure : National Rivers Authority Thames Region, Biology, Thames Estuary Benthic Programme
6397Lelant Watermill bacterial contamination investigation 1995
6398New biological methods for assessing episodic pollution
6399Oestrogenic endocrine disruption in flounder (Platichthys flesus L.) from United Kingdom estuarine and marine waters
6400Pollution incidents in England and Wales 2000