| 451 | An audit of performance in the AQC inspection of standard biological macro-invertebrate samples in 2002 : The Environment Agency (C00158/31) |
|---|
| 452 | Biological investigation of the impact of Ivybridge sewage treatment works discharge to the River Erme, May 1991 |
|---|
| 453 | Final report of the controlled cohort investigations into the health effects of bathing in sewage contaminated coastal waters |
|---|
| 454 | An investigation into high concentrations of atrazine in surface waters and the increase in maize production in the Otter valley |
|---|
| 455 | River Habitat Quality the physical character of rivers and streams in the UK and Isle of Man |
|---|
| 456 | Biosensors for environmental monitoring : a review of capabilities and strategies for the future : consultant's report to the NRA |
|---|
| 457 | An assessment of the causes of non-compliance with river quality standards within the River Tiddy catchment (1989-1991) |
|---|
| 458 | Assessment of the feasibility of using image analysis in the oyster embryo-larval development and daphnia magna growth tests |
|---|
| 459 | An investigation into the frequency of discharge of three combined sewer overflows in the Afan/Kenfig catchment : TM/EAW/96/06 |
|---|
| 460 | Contaminants entering the sea : a report on contaminant loads entering the seas around England and Wales 1990-1993 |
|---|
| 461 | NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group |
|---|
| 462 | Land use assessment of non-tidal main rivers in the southern region of the National Rivers Authority : report EX 2922 |
|---|
| 463 | The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England; |
|---|
| 464 | PhD Research. Gary Stephen Rushworth. The role of aquatic macroinvertebrates within reedswamps |
|---|
| 465 | POLICY & PRACTICE FOR THE PROTECTION OF GROUNDWATER - DRAWINGS |
|---|
| 466 | The River Eden Demonstration Test Catchment (DTC) Data |
|---|
| 467 | 1967 - IBP Lake George, Uganda - starting to build the bedroom block |
|---|
| 468 | The regulation of salmon angling in Great Britain
|
|---|
| 469 | Disturbing the season's due: plankton periodicity in Grassmere, 1987 |
|---|
| 470 | The Evaluation of Acoustic Doppler Current Profiler Equipment |
|---|
| 471 | Modelling phytoplankton development in the proposed Cardiff Bay Barrage
|
|---|
| 472 | The Impact Of Particulate Outputs Associated With Timber Harvesting |
|---|
| 473 | The evaluation of Grant/YSU 3800 water quality monitor |
|---|
| 474 | PVC : an evaluation using the Natural Step framework |
|---|
| 475 | Pesticides in the aquatic environment 1997 full report |
|---|
