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326The Effect of Atrazine Exposure on the Timing of Salmon (Salmo salar L.) Smolt Emigration
327Planning for the rising tides : the Humber estuary shoreline management plan. Summary of proposals
328Further surveys to elucidate the distribution of the fine-lined pea mussel Pisidium tenuilineatum Stelfox, 1918
329The influence of agriculture on the quality of natural waters in England and Wales
330The physical character of rivers and streams in the UK and Isle of Man
331The Distribution of Phytoplankton and Nutrients in the North East Irish Sea During 1998
332Biological assessment of the effects of Ivybridge Sewage Treatment Works on the River Erme
333The impact of land use on salmonids (Report 30) : a study of the River Torridge catchment
334A unified information system to satisfy the NRA's requirement for ecotoxicology information: the specification study
335A Status Report on the Direct Oxygenation of the Tywi Estuary - October 1989
336The application of toxicity-based criteria for the regulatory control of wastewater discharges: a consultation document
337An investigation into the effects of Alton sewage works on the River Wey North
338Investigation into the impact of Henstridge sewage treatment works on the River Umber, North Devon
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)
343The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Culm Aquifers, SW England;
344Rural sewage pollution in the '90s : report of the rural sewerage project 1993/4
345Responses to 'Outlook for the environment' : a summary of the responses to the Environment Agency's consulation on the priorities for investment by water companies in environmental improvements as part of the Periodic Review
346Report on the national marine analytical quality control scheme 1993/94 : presented to the 18th October 1994 meeting of the Marine Pollution Monitoring Management Group
347Identification of Blue Green Algae of the British Isles Guide to the Genera and Use of the Interactive CD-ROM for Identification of Species
348Outlook for the environment : a consultation paper by the Environment Agency on the priorities for investment by water companies in environmental improvements
349Implementation of the EC freshwater fish directive : water quality requirements for the support of fish life : report of the National Rivers Authority
350East Devon public water supply strategy as assessment of the hydrological impact of the Wimbleball pump storage scheme at key sites on the River Exe