| 426 | River Habitat Quality the physical character of rivers and streams in the UK and Isle of Man |
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| 427 | Investigation of flow distribution in a fracture zone at the Stripa mine, using the radar method, results and interpretation |
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| 428 | Biosensors for environmental monitoring : a review of capabilities and strategies for the future : consultant's report to the NRA |
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| 429 | Assessment of the feasibility of using image analysis in the oyster embryo-larval development and daphnia magna growth tests |
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| 430 | A review of the quality and status of the Suffolk and Essex estuaries and coastal waters : volume 1 : final draft |
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| 431 | Contaminants entering the sea : a report on contaminant loads entering the seas around England and Wales 1990-1993 |
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| 432 | NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group |
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| 433 | The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England; |
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| 434 | PhD Research. Gary Stephen Rushworth. The role of aquatic macroinvertebrates within reedswamps |
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| 435 | POLICY & PRACTICE FOR THE PROTECTION OF GROUNDWATER - DRAWINGS |
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| 436 | The River Eden Demonstration Test Catchment (DTC) Data |
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| 437 | 1967 - IBP Lake George, Uganda - starting to build the bedroom block |
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| 438 | Environmental snapshot for the East of England [version 1] |
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| 439 | The regulation of salmon angling in Great Britain
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| 440 | Disturbing the season's due: plankton periodicity in Grassmere, 1987 |
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| 441 | The Evaluation of Acoustic Doppler Current Profiler Equipment |
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| 442 | Modelling phytoplankton development in the proposed Cardiff Bay Barrage
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| 443 | Dead zones, live markers: the biological environments of larger U.K. Rivers
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| 444 | The Impact Of Particulate Outputs Associated With Timber Harvesting |
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| 445 | The evaluation of Grant/YSU 3800 water quality monitor |
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| 446 | Recommendations For The Processing And Presentation Of Groundwater Quality Data |
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| 447 | Landfill and the water environment : NRA position statement |
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| 448 | The vision for our environment : making it happen |
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| 449 | Environment Agency guidance on the conditioning of intermediate level waste |
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| 450 | Quality audit of biological samples for the 1991 river quality survey |
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