| 576 | The National Centre for Environmental Data and Surveillance : general leaflet |
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| 577 | The groundwater regulations (Bilingual) : Rheoliadau dwr daear (Bilingual) |
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| 578 | The Use of Immuno Based Techniques for Chemical Analysis |
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| 579 | Snapshots of the environment : integrated river basin management |
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| 580 | Water from the River Dee : a working partnership |
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| 581 | Land drainage byelaws 1981 and the Thames region flood defence byelaws 1991 |
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| 582 | River quality in England and Wales : a report of the 1990 survey |
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| 583 | Snapshots of the environment : understanding coastal water quality |
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| 584 | The evaluation of EDT QSE 334 ammonium ion selective electrode (220/17/T) |
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| 585 | The evaluation of ingold ion selective ammonium electrode (220/23/T) |
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| 586 | Rivers of the Isle of Wight fact file |
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| 587 | The Influence of Variations in Flow on General Quality Assessment of Rivers |
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| 588 | Stratification in the Severn Estuary- Physical aspects and biological consequences |
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| 589 | The Mersey estuary : a report on environmental quality |
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| 590 | 'Sea Vigil' water quality monitoring : the East coast 1992-1993 |
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| 591 | Catches of migratory fish in the River Don, Aberdeenshire |
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| 592 | Lakes, Ponds and Reservoirs in the Southern Region (NRA) |
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| 593 | The 1990 river and estuary classification survey of England and Wales |
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| 594 | The evaluation of an orion ammonium ion selective electrode (220/15/T) |
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| 595 | An Independent Review of the Defra/EA Research and Development Joint |
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| 596 | Anthropogenic Impacts on the Hydrology of Rivers and Lochs |
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| 597 | Dissemination of the Revitalised FEH Rainfall-runoff Method |
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| 598 | General guide to the prevention of water pollution |
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| 599 | Guidance for the Development of Housing on Land Affected by Contamination |
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| 600 | Highway runoff: Effects of soluble pollutants on the ecology of receiving waters |
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