| 5451 | Ecotoxicology : a report of the NRA R and D Ecotoxicology Group |
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| 5452 | Ecotoxicology : new approaches |
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| 5453 | Investigating Links Between Bacterial Exotoxins and Unexplained Fish Kills: Phase 3 |
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| 5454 | Hydrodat : groundwater monitoring database system. Guidelines |
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| 5455 | Pesticides 2000 : a summary of monitoring of the aquatic environment in England and Wales |
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| 5456 | Analysis of methyl tertiary-butyl ether (MTBE) and other petroleum oxygenates in water |
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| 5457 | The results of fish telemetry trails in the river Tawe estuary, 1991 |
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| 5458 | Analysis of airborne platform specifications and operations for the National Rivers Authority by Atlantique Reconnaissance Ltd |
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| 5459 | Compact airborne spectrographic imager : CASI |
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| 5460 | Aircraft utilisation study |
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| 5461 | Coastal baseline survey January/February 1995 : results |
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| 5462 | Gulliver |
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| 5463 | National marine baseline survey 1995 : littoral cell 10 : Bardsey Sound to Great Orme |
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| 5464 | Validation of statutory sampling sites using aerial surveillance : case study 4 |
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| 5465 | Further development of airborne remote sensing techniques; |
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| 5466 | Effective flood warning the Australian way : the Winston Churchill Travelling Fellowship visit to Australia and New Zealand 23 October - 27 November 1994 |
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| 5467 | Aquatic eutrophication (leaflet) |
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| 5468 | Bathing water quality : fact sheet (bilingual) : Ansawdd dwr ymdrochi : taflen ffeithiau |
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| 5469 | General awareness, environment management and the Water Framework Directive (WFD) |
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| 5470 | Guardians of the water environment (NRA Thames Region) |
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| 5471 | Quarterly review : Southern region 1993/94 |
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| 5472 | River Thames : tips for visiting boaters |
|---|
| 5473 | Round-up of National and Regional media coverage of the Landfill Tax introduction and Flytipping crack down |
|---|
| 5474 | Study of the River Stour, Kent |
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| 5475 | The source : a guide to NRA services |
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