551 | Investigation of flow distribution in a fracture zone at the Stripa mine, using the radar method, results and interpretation |
552 | Biosensors for environmental monitoring : a review of capabilities and strategies for the future : consultant's report to the NRA |
553 | An assessment of the causes of non-compliance with river quality standards within the River Tiddy catchment (1989-1991) |
554 | Assessment of the feasibility of using image analysis in the oyster embryo-larval development and daphnia magna growth tests |
555 | A review of the quality and status of the Suffolk and Essex estuaries and coastal waters : volume 1 : final draft |
556 | Contaminants entering the sea : a report on contaminant loads entering the seas around England and Wales 1990-1993 |
557 | NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group |
558 | Options for transfer of water from the River Trent and reservoir storage at Great Bradley : technical summary of the feasibility report |
559 | Land use assessment of non-tidal main rivers in the southern region of the National Rivers Authority : report EX 2922 |
560 | The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England; |
561 | PhD Research. Gary Stephen Rushworth. The role of aquatic macroinvertebrates within reedswamps |
562 | POLICY & PRACTICE FOR THE PROTECTION OF GROUNDWATER - DRAWINGS |
563 | 1967 - IBP Lake George, Uganda - starting to build the bedroom block |
564 | Environmental snapshot for the East of England [version 1] |
565 | The regulation of salmon angling in Great Britain
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566 | Disturbing the season's due: plankton periodicity in Grassmere, 1987 |
567 | The Evaluation of Acoustic Doppler Current Profiler Equipment |
568 | Modelling phytoplankton development in the proposed Cardiff Bay Barrage
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569 | Dead zones, live markers: the biological environments of larger U.K. Rivers
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570 | The Impact Of Particulate Outputs Associated With Timber Harvesting |
571 | The evaluation of Grant/YSU 3800 water quality monitor |
572 | PVC : an evaluation using the Natural Step framework |
573 | Recommendations For The Processing And Presentation Of Groundwater Quality Data |
574 | Landfill and the water environment : NRA position statement |
575 | The vision for our environment : making it happen |