| 451 | Investigation of flow distribution in a fracture zone at the Stripa mine, using the radar method, results and interpretation |
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| 452 | An assessment of the causes of non-compliance with river quality standards within the River Tiddy catchment (1989-1991) |
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| 453 | Assessment of the feasibility of using image analysis in the oyster embryo-larval development and daphnia magna growth tests |
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| 454 | A review of the quality and status of the Suffolk and Essex estuaries and coastal waters : volume 1 : final draft |
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| 455 | 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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| 456 | Contaminants entering the sea : a report on contaminant loads entering the seas around England and Wales 1990-1993 |
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| 457 | NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group |
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| 458 | 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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| 459 | Land use assessment of non-tidal main rivers in the southern region of the National Rivers Authority : report EX 2922 |
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| 460 | PhD Research. Gary Stephen Rushworth. The role of aquatic macroinvertebrates within reedswamps |
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| 461 | POLICY & PRACTICE FOR THE PROTECTION OF GROUNDWATER - DRAWINGS |
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| 462 | The River Eden Demonstration Test Catchment (DTC) Data |
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| 463 | 1967 - IBP Lake George, Uganda - starting to build the bedroom block |
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| 464 | The regulation of salmon angling in Great Britain
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| 465 | Disturbing the season's due: plankton periodicity in Grassmere, 1987 |
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| 466 | The Evaluation of Acoustic Doppler Current Profiler Equipment |
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| 467 | Modelling phytoplankton development in the proposed Cardiff Bay Barrage
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| 468 | Dead zones, live markers: the biological environments of larger U.K. Rivers
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| 469 | The Impact Of Particulate Outputs Associated With Timber Harvesting |
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| 470 | The evaluation of Grant/YSU 3800 water quality monitor |
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| 471 | PVC : an evaluation using the Natural Step framework |
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| 472 | Recommendations For The Processing And Presentation Of Groundwater Quality Data |
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| 473 | Landfill and the water environment : NRA position statement |
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| 474 | Environment Agency guidance on the conditioning of intermediate level waste |
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| 475 | Quality audit of biological samples for the 1991 river quality survey |
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