551 | Biosensors for environmental monitoring : a review of capabilities and strategies for the future : consultant's report to the NRA |
552 | An assessment of the causes of non-compliance with river quality standards within the River Tiddy catchment (1989-1991) |
553 | Assessment of the feasibility of using image analysis in the oyster embryo-larval development and daphnia magna growth tests |
554 | An investigation into the frequency of discharge of three combined sewer overflows in the Afan/Kenfig catchment : TM/EAW/96/06 |
555 | Contaminants entering the sea : a report on contaminant loads entering the seas around England and Wales 1990-1993 |
556 | NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group |
557 | Land use assessment of non-tidal main rivers in the southern region of the National Rivers Authority : report EX 2922 |
558 | The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England; |
559 | PhD Research. Gary Stephen Rushworth. The role of aquatic macroinvertebrates within reedswamps |
560 | POLICY & PRACTICE FOR THE PROTECTION OF GROUNDWATER - DRAWINGS |
561 | The River Eden Demonstration Test Catchment (DTC) Data |
562 | 1967 - IBP Lake George, Uganda - starting to build the bedroom block |
563 | Environmental snapshot for the East of England [version 1] |
564 | The regulation of salmon angling in Great Britain
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565 | Disturbing the season's due: plankton periodicity in Grassmere, 1987 |
566 | The Evaluation of Acoustic Doppler Current Profiler Equipment |
567 | Modelling phytoplankton development in the proposed Cardiff Bay Barrage
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568 | Dead zones, live markers: the biological environments of larger U.K. Rivers
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569 | The Impact Of Particulate Outputs Associated With Timber Harvesting |
570 | The evaluation of Grant/YSU 3800 water quality monitor |
571 | PVC : an evaluation using the Natural Step framework |
572 | Recommendations For The Processing And Presentation Of Groundwater Quality Data |
573 | Landfill and the water environment : NRA position statement |
574 | The vision for our environment : making it happen |
575 | Environment Agency guidance on the conditioning of intermediate level waste |