551 | The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England; |
552 | PhD Research. Gary Stephen Rushworth. The role of aquatic macroinvertebrates within reedswamps |
553 | POLICY & PRACTICE FOR THE PROTECTION OF GROUNDWATER - DRAWINGS |
554 | The River Eden Demonstration Test Catchment (DTC) Data |
555 | 1967 - IBP Lake George, Uganda - starting to build the bedroom block |
556 | Environmental snapshot for the East of England [version 1] |
557 | The regulation of salmon angling in Great Britain
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558 | Disturbing the season's due: plankton periodicity in Grassmere, 1987 |
559 | The Evaluation of Acoustic Doppler Current Profiler Equipment |
560 | Modelling phytoplankton development in the proposed Cardiff Bay Barrage
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561 | Dead zones, live markers: the biological environments of larger U.K. Rivers
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562 | The Impact Of Particulate Outputs Associated With Timber Harvesting |
563 | The evaluation of Grant/YSU 3800 water quality monitor |
564 | PVC : an evaluation using the Natural Step framework |
565 | Recommendations For The Processing And Presentation Of Groundwater Quality Data |
566 | Landfill and the water environment : NRA position statement |
567 | The vision for our environment : making it happen |
568 | Environment Agency guidance on the conditioning of intermediate level waste |
569 | Quality audit of biological samples for the 1991 river quality survey |
570 | Pesticides in the aquatic environment 1997 full report |
571 | The Wandle, Beverley Brook, Hogsmill catchment management plan : consultation report : November 1994 |
572 | The precious resource : a brief guide to managing our water resources |
573 | Quantification of the relationship between effluent quality and biological quality : final report |
574 | Charging for discharges scheme : guidance to the agricultural industry |
575 | Priority and other specific polluting substances and the Water Framework Directive |