176 | Further surveys to elucidate the distribution of the fine-lined pea mussel Pisidium tenuilineatum Stelfox, 1918 |
177 | The influence of agriculture on the quality of natural waters in England and Wales |
178 | The Distribution of Phytoplankton and Nutrients in the North East Irish Sea During 1998 |
179 | Biological assessment of the effects of Ivybridge Sewage Treatment Works on the River Erme |
180 | The impact of industrial discharges on metal levels in biota of the West Cumbrian coast - 1990 |
181 | The impact of land use on salmonids (Report 30) : a study of the River Torridge catchment |
182 | A Status Report on the Direct Oxygenation of the Tywi Estuary - October 1989 |
183 | A collation of the environmental impact work carried out following the Rosebay oil spill, May 1990 |
184 | The application of toxicity-based criteria for the regulatory control of wastewater discharges: a consultation document |
185 | An investigation into the effects of Alton sewage works on the River Wey North |
186 | Investigation into the impact of Henstridge sewage treatment works on the River Umber, North Devon |
187 | The land-use planning system and the Water Framework Directive (can't read barcode) |
188 | Rural sewage pollution in the '90s : report of the rural sewerage project 1993/4 |
189 | Report for Anglian Water, NRA Unit on the uses of the Orwell and the Stour Estuaries and the use of the mathematical model to derive long term consent limits for all inputs to Orwell Estuary |
190 | Responses to 'Outlook for the environment' : a summary of the responses to the Environment Agency's consulation on the priorities for investment by water companies in environmental improvements as part of the Periodic Review |
191 | Report on the national marine analytical quality control scheme 1993/94 : presented to the 18th October 1994 meeting of the Marine Pollution Monitoring Management Group |
192 | Identification of Blue Green Algae of the British Isles Guide to the Genera and Use of the Interactive CD-ROM for Identification of Species |
193 | Outlook for the environment : a consultation paper by the Environment Agency on the priorities for investment by water companies in environmental improvements |
194 | Implementation of the EC freshwater fish directive : water quality requirements for the support of fish life : report of the National Rivers Authority |
195 | Biological Assessment Methods: Controlling the Quality of Biological Data. Package 1 The variability of data used for assessing the biological condition of rivers |
196 | Pesticides in the aquatic environment : report of the National Rivers Authority, prepared by the National Centre for Toxic and Persistant Substances (TAPS) |
197 | The new waterlands? Proceedings of a one day seminar organised by the Sussex Wildlife Trust as part of the RSNC Wildlife Trusts Parnership Water For Wildlife campaign |
198 | The effects of ammonia in discharges from Hogsmill Valley sewage treatment works on the water quality of the River Thames at Teddington |
199 | Measures to safeguard public water supplies : a second report to the Secretary of State for the Environment on the drought of 1995 |
200 | A field guide to the British seaweeds : as required for assistance in the classification of water bodies under the Water Framework Directive |