| 426 | Review of flood defence practices on the Somerset Levels and Moors : the appendices |
|---|
| 427 | Review of flood defence practices on the Somerset Levels and Moors : the report |
|---|
| 428 | Investigation of the water quality in the Buckland stream up and downstream of East/West Buckland |
|---|
| 429 | The Effect of Atrazine Exposure on the Timing of Salmon (Salmo salar L.) Smolt Emigration |
|---|
| 430 | Planning for the rising tides : the Humber estuary shoreline management plan. Summary of proposals |
|---|
| 431 | Further surveys to elucidate the distribution of the fine-lined pea mussel Pisidium tenuilineatum Stelfox, 1918 |
|---|
| 432 | The influence of agriculture on the quality of natural waters in England and Wales |
|---|
| 433 | The physical character of rivers and streams in the UK and Isle of Man |
|---|
| 434 | The Distribution of Phytoplankton and Nutrients in the North East Irish Sea During 1998 |
|---|
| 435 | Biological assessment of the effects of Ivybridge Sewage Treatment Works on the River Erme |
|---|
| 436 | The impact of industrial discharges on metal levels in biota of the West Cumbrian coast - 1990 |
|---|
| 437 | Environmental monitoring of the Fal Estuary to support the Fal Swan study : final draft report |
|---|
| 438 | The impact of land use on salmonids (Report 30) : a study of the River Torridge catchment |
|---|
| 439 | The behaviour of atrazine and simazine within the chalk aquifer : experimental results and interpretation |
|---|
| 440 | A unified information system to satisfy the NRA's requirement for ecotoxicology information: the specification study |
|---|
| 441 | A Status Report on the Direct Oxygenation of the Tywi Estuary - October 1989 |
|---|
| 442 | A collation of the environmental impact work carried out following the Rosebay oil spill, May 1990 |
|---|
| 443 | The application of toxicity-based criteria for the regulatory control of wastewater discharges: a consultation document |
|---|
| 444 | An investigation into the effects of Alton sewage works on the River Wey North |
|---|
| 445 | Investigation into the impact of Henstridge sewage treatment works on the River Umber, North Devon |
|---|
| 446 | A brief history of the River Stour navigation : 1705 to the present day |
|---|
| 447 | The Investigation and Specification of Flow Measurement Structure Design Features that Aid the Migration of Fish |
|---|
| 448 | Discharges of waste under the EC titanium dioxide directives : report of the National Rivers Authority |
|---|
| 449 | Protecting your future : tackling flooding in the Thames Estuary through the 21st century |
|---|
| 450 | The land-use planning system and the Water Framework Directive (can't read barcode) |
|---|
