476 | POLICY & PRACTICE FOR THE PROTECTION OF GROUNDWATER - DRAWINGS |
477 | 1967 - IBP Lake George, Uganda - starting to build the bedroom block |
478 | Environmental snapshot for the East of England [version 1] |
479 | The regulation of salmon angling in Great Britain
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480 | Disturbing the season's due: plankton periodicity in Grassmere, 1987 |
481 | The Evaluation of Acoustic Doppler Current Profiler Equipment |
482 | Modelling phytoplankton development in the proposed Cardiff Bay Barrage
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483 | Dead zones, live markers: the biological environments of larger U.K. Rivers
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484 | The Impact Of Particulate Outputs Associated With Timber Harvesting |
485 | The evaluation of Grant/YSU 3800 water quality monitor |
486 | PVC : an evaluation using the Natural Step framework |
487 | Recommendations For The Processing And Presentation Of Groundwater Quality Data |
488 | The vision for our environment : making it happen |
489 | Environment Agency guidance on the conditioning of intermediate level waste |
490 | Quality audit of biological samples for the 1991 river quality survey |
491 | Pesticides in the aquatic environment 1997 full report |
492 | The precious resource : a brief guide to managing our water resources |
493 | Quantification of the relationship between effluent quality and biological quality : final report |
494 | Priority and other specific polluting substances and the Water Framework Directive |
495 | Evaluation of historical data on the nutrient status of Esthwaite Water, Cumbria
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496 | An Aerial Photograph of Ferry House and The Pearsall Building |
497 | Review of existing practices for fluvial grass management throughout the NRA (213/1/Y) |
498 | The interpretation of rod and net catch data |
499 | Research and development in the Environment Agency : a short guide |
500 | Problems with sea trout and salmon in the Western Highlands |