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