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501Snapshots of the environment : understanding coastal water quality
502The evaluation of EDT QSE 334 ammonium ion selective electrode (220/17/T)
503The evaluation of ingold ion selective ammonium electrode (220/23/T)
504Rivers of the Isle of Wight fact file
505Stratification in the Severn Estuary- Physical aspects and biological consequences
506The Mersey estuary : a report on environmental quality
507Catches of migratory fish in the River Don, Aberdeenshire
508Stream survey and assessment in the Ashford and Folkestone areas
509Lakes, Ponds and Reservoirs in the Southern Region (NRA)
510The 1990 river and estuary classification survey of England and Wales
511The evaluation of an orion ammonium ion selective electrode (220/15/T)
512An Independent Review of the Defra/EA Research and Development Joint
513Anthropogenic Impacts on the Hydrology of Rivers and Lochs
514Dissemination of the Revitalised FEH Rainfall-runoff Method
515General guide to the prevention of water pollution
516Guidance on the use of Soil Screening Values for Ecological Risk Assessment
517Highway runoff: Effects of soluble pollutants on the ecology of receiving waters
518Life cycle assessment of disposable and reusable nappies in the UK
519Managing the social aspects of flooding: Synthesis Report
520Operational mechanisms for the protection and enhancement of headwaters
521Policy and practice for the protection of groundwater : regional appendix Welsh region
522Procurement legislation and the NRA : a brief guide
523Sustainable development indicators : monitoring change in the East Midlands
524Technical Support Materials for the Regulation of Radioactively Contaminated Land
525The impact of climate change on severe droughts: Implications for decision making