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526Final report of the controlled cohort investigations into the health effects of bathing in sewage contaminated coastal waters
527An investigation to determine the source of high levels of gamma-HCH in the Newlyn River during summer 1989
528An investigation into high concentrations of atrazine in surface waters and the increase in maize production in the Otter valley
529River Habitat Quality the physical character of rivers and streams in the UK and Isle of Man
530Investigation of flow distribution in a fracture zone at the Stripa mine, using the radar method, results and interpretation
531Biosensors for environmental monitoring : a review of capabilities and strategies for the future : consultant's report to the NRA
532An assessment of the causes of non-compliance with river quality standards within the River Tiddy catchment (1989-1991)
533Assessment of the feasibility of using image analysis in the oyster embryo-larval development and daphnia magna growth tests
534An investigation into the frequency of discharge of three combined sewer overflows in the Afan/Kenfig catchment : TM/EAW/96/06
535Contaminants entering the sea : a report on contaminant loads entering the seas around England and Wales 1990-1993
536NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group
537Land use assessment of non-tidal main rivers in the southern region of the National Rivers Authority : report EX 2922
538The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England;
539PhD Research. Gary Stephen Rushworth. The role of aquatic macroinvertebrates within reedswamps
540POLICY & PRACTICE FOR THE PROTECTION OF GROUNDWATER - DRAWINGS
541The River Eden Demonstration Test Catchment (DTC) Data
5421967 - IBP Lake George, Uganda - starting to build the bedroom block
543Disturbing the season's due: plankton periodicity in Grassmere, 1987
544The Evaluation of Acoustic Doppler Current Profiler Equipment
545Modelling phytoplankton development in the proposed Cardiff Bay Barrage
546Dead zones, live markers: the biological environments of larger U.K. Rivers
547The Impact Of Particulate Outputs Associated With Timber Harvesting
548The evaluation of Grant/YSU 3800 water quality monitor
549PVC : an evaluation using the Natural Step framework
550Recommendations For The Processing And Presentation Of Groundwater Quality Data