476 | The Use of Immuno Based Techniques for Chemical Analysis |
477 | Snapshots of the environment : integrated river basin management |
478 | Land drainage byelaws 1981 and the Thames region flood defence byelaws 1991 |
479 | River quality in England and Wales : a report of the 1990 survey |
480 | Snapshots of the environment : understanding coastal water quality |
481 | The evaluation of EDT QSE 334 ammonium ion selective electrode (220/17/T) |
482 | The evaluation of ingold ion selective ammonium electrode (220/23/T) |
483 | The Influence of Variations in Flow on General Quality Assessment of Rivers |
484 | Stratification in the Severn Estuary- Physical aspects and biological consequences |
485 | 'Sea Vigil' water quality monitoring : the East coast 1992-1993 |
486 | Catches of migratory fish in the River Don, Aberdeenshire |
487 | Stream survey and assessment in the Ashford and Folkestone areas |
488 | Lakes, Ponds and Reservoirs in the Southern Region (NRA) |
489 | The 1990 river and estuary classification survey of England and Wales |
490 | The evaluation of an orion ammonium ion selective electrode (220/15/T) |
491 | An Independent Review of the Defra/EA Research and Development Joint |
492 | Anthropogenic Impacts on the Hydrology of Rivers and Lochs |
493 | Dissemination of the Revitalised FEH Rainfall-runoff Method |
494 | General guide to the prevention of water pollution |
495 | Guidance for the Development of Housing on Land Affected by Contamination |
496 | Guidance on the use of Soil Screening Values for Ecological Risk Assessment |
497 | Highway runoff: Effects of soluble pollutants on the ecology of receiving waters |
498 | Life cycle assessment of disposable and reusable nappies in the UK |
499 | Managing the social aspects of flooding: Synthesis Report |
500 | Model For Investigating The Impacts Of Groundwater Abstraction |