| 476 | An investigation to determine the source of high levels of gamma-HCH in the Newlyn River during summer 1989 |
|---|
| 477 | An investigation into high concentrations of atrazine in surface waters and the increase in maize production in the Otter valley |
|---|
| 478 | River Habitat Quality the physical character of rivers and streams in the UK and Isle of Man |
|---|
| 479 | Investigation of flow distribution in a fracture zone at the Stripa mine, using the radar method, results and interpretation |
|---|
| 480 | An assessment of the causes of non-compliance with river quality standards within the River Tiddy catchment (1989-1991) |
|---|
| 481 | Assessment of the feasibility of using image analysis in the oyster embryo-larval development and daphnia magna growth tests |
|---|
| 482 | Contaminants entering the sea : a report on contaminant loads entering the seas around England and Wales 1990-1993 |
|---|
| 483 | NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group |
|---|
| 484 | Options for transfer of water from the River Trent and reservoir storage at Great Bradley : technical summary of the feasibility report |
|---|
| 485 | Land use assessment of non-tidal main rivers in the southern region of the National Rivers Authority : report EX 2922 |
|---|
| 486 | The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England; |
|---|
| 487 | PhD Research. Gary Stephen Rushworth. The role of aquatic macroinvertebrates within reedswamps |
|---|
| 488 | POLICY & PRACTICE FOR THE PROTECTION OF GROUNDWATER - DRAWINGS |
|---|
| 489 | The River Eden Demonstration Test Catchment (DTC) Data |
|---|
| 490 | 1967 - IBP Lake George, Uganda - starting to build the bedroom block |
|---|
| 491 | The regulation of salmon angling in Great Britain
|
|---|
| 492 | Disturbing the season's due: plankton periodicity in Grassmere, 1987 |
|---|
| 493 | The Evaluation of Acoustic Doppler Current Profiler Equipment |
|---|
| 494 | Modelling phytoplankton development in the proposed Cardiff Bay Barrage
|
|---|
| 495 | Dead zones, live markers: the biological environments of larger U.K. Rivers
|
|---|
| 496 | The Impact Of Particulate Outputs Associated With Timber Harvesting |
|---|
| 497 | The evaluation of Grant/YSU 3800 water quality monitor |
|---|
| 498 | PVC : an evaluation using the Natural Step framework |
|---|
| 499 | Recommendations For The Processing And Presentation Of Groundwater Quality Data |
|---|
| 500 | Landfill and the water environment : NRA position statement |
|---|
