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326The physical character of rivers and streams in the UK and Isle of Man
327The Distribution of Phytoplankton and Nutrients in the North East Irish Sea During 1998
328Biological assessment of the effects of Ivybridge Sewage Treatment Works on the River Erme
329The impact of industrial discharges on metal levels in biota of the West Cumbrian coast - 1990
330Environmental monitoring of the Fal Estuary to support the Fal Swan study : final draft report
331The impact of land use on salmonids (Report 30) : a study of the River Torridge catchment
332A unified information system to satisfy the NRA's requirement for ecotoxicology information: the specification study
333A Status Report on the Direct Oxygenation of the Tywi Estuary - October 1989
334A collation of the environmental impact work carried out following the Rosebay oil spill, May 1990
335The application of toxicity-based criteria for the regulatory control of wastewater discharges: a consultation document
336An investigation into the effects of Alton sewage works on the River Wey North
337Investigation into the impact of Henstridge sewage treatment works on the River Umber, North Devon
338A brief history of the River Stour navigation : 1705 to the present day
339The Investigation and Specification of Flow Measurement Structure Design Features that Aid the Migration of Fish
340Discharges of waste under the EC titanium dioxide directives : report of the National Rivers Authority
341Protecting your future : tackling flooding in the Thames Estuary through the 21st century
342The land-use planning system and the Water Framework Directive (can't read barcode)
343Rural sewage pollution in the '90s : report of the rural sewerage project 1993/4
344Report for Anglian Water, NRA Unit on the uses of the Orwell and the Stour Estuaries and the use of the mathematical model to derive long term consent limits for all inputs to Orwell Estuary
345Report on the national marine analytical quality control scheme 1993/94 : presented to the 18th October 1994 meeting of the Marine Pollution Monitoring Management Group
346Identification of Blue Green Algae of the British Isles Guide to the Genera and Use of the Interactive CD-ROM for Identification of Species
347Implementation of the EC freshwater fish directive : water quality requirements for the support of fish life : report of the National Rivers Authority
348East Devon public water supply strategy as assessment of the hydrological impact of the Wimbleball pump storage scheme at key sites on the River Exe
349Biological Assessment Methods: Controlling the Quality of Biological Data. Package 1 The variability of data used for assessing the biological condition of rivers
350Response to questions posed by Northumbrian Water Authority, with special reference to the fisheries implications of the operation of the Kielder Water Scheme