| 476 | Biological investigation of the impact of Ivybridge sewage treatment works discharge to the River Erme, May 1991 |
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| 477 | River Habitat Quality the physical character of rivers and streams in the UK and Isle of Man |
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| 478 | Investigation of flow distribution in a fracture zone at the Stripa mine, using the radar method, results and interpretation |
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| 479 | Biosensors for environmental monitoring : a review of capabilities and strategies for the future : consultant's report to the NRA |
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| 480 | Assessment of the feasibility of using image analysis in the oyster embryo-larval development and daphnia magna growth tests |
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| 481 | A review of the quality and status of the Suffolk and Essex estuaries and coastal waters : volume 1 : final draft |
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| 482 | An investigation into the frequency of discharge of three combined sewer overflows in the Afan/Kenfig catchment : TM/EAW/96/06 |
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| 483 | Contaminants entering the sea : a report on contaminant loads entering the seas around England and Wales 1990-1993 |
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| 484 | NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group |
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| 485 | Options for transfer of water from the River Trent and reservoir storage at Great Bradley : technical summary of the feasibility report |
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| 486 | Land use assessment of non-tidal main rivers in the southern region of the National Rivers Authority : report EX 2922 |
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| 487 | The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England; |
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| 488 | PhD Research. Gary Stephen Rushworth. The role of aquatic macroinvertebrates within reedswamps |
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| 489 | POLICY & PRACTICE FOR THE PROTECTION OF GROUNDWATER - DRAWINGS |
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| 490 | The River Eden Demonstration Test Catchment (DTC) Data |
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| 491 | 1967 - IBP Lake George, Uganda - starting to build the bedroom block |
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| 492 | Environmental snapshot for the East of England [version 1] |
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| 493 | The regulation of salmon angling in Great Britain
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| 494 | Disturbing the season's due: plankton periodicity in Grassmere, 1987 |
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| 495 | The Evaluation of Acoustic Doppler Current Profiler Equipment |
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| 496 | Modelling phytoplankton development in the proposed Cardiff Bay Barrage
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| 497 | Dead zones, live markers: the biological environments of larger U.K. Rivers
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| 498 | The Impact Of Particulate Outputs Associated With Timber Harvesting |
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| 499 | The evaluation of Grant/YSU 3800 water quality monitor |
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| 500 | PVC : an evaluation using the Natural Step framework |
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