| 1251 | Monitoring of the River Burn upstream and downstream of Burnham Market sewage treatment works 1999 |
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| 1252 | Macrophyte status of the Rivers Test and Itchen - Hampshire : summary report - October 1998 |
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| 1253 | An audit of performance in the processing of macro-invertebrate samples in 1992 |
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| 1254 | Development of the Acid Water Indicator Community (AWIC) Macroinvertebrate Family and Species Level |
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| 1255 | The application and validation of in situ ecotoxicological assays at biologically and chemically incongruous sites (379/2/T) |
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| 1256 | A report on a baseline survey of the subtidal benthic communities within Portland Harbour (January 1997) |
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| 1257 | Linking hydrology and ecology : River Wissey : Annex B aquatic macrophytes of the River Wissey |
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| 1258 | Policy and practice for the protection of groundwater : regional appendix South West region |
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| 1259 | The available resource methodology : a framework for assessing water resources and abstraction availability : final report |
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| 1260 | Controlling the inputs of persistent chemical to marine waters from land-based sources |
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| 1261 | An environmental assessment of mercury in mussels (Mytilus edulis L.) in the Mersey Estuary : final report |
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| 1262 | The Impact Of Discarded Fishing Line And Tackle On Mute Swans - Phase 1 |
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| 1263 | Heavy metal contaminants in fish caught from the Mersey Estuary and inshore Liverpool Bay |
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| 1264 | A review of the industrial uses of continuous monitoring systems : minerals industry processes |
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| 1265 | Herbicides for use in or near the aquatic environment: Priorities for Environmental Quality Standards Development |
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| 1266 | Manual for the use of herbicides in or near water : April 1993 : final draft report |
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| 1267 | Direct toxicity assessment : a step towards better environmental protection within the UK : business strategy |
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| 1268 | Pesticides 2000 : a summary of monitoring of the aquatic environment in England and Wales |
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| 1269 | Analysis of airborne platform specifications and operations for the National Rivers Authority by Atlantique Reconnaissance Ltd |
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| 1270 | Effectiveness of eutrophication control by phosphorus reduction: development of the INCA-P model |
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| 1271 | An investigation of the Madford River pollution incident of 29 July 1989 : November 1989 |
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| 1272 | Devon area internal report - measurement of dissolved oxygen levels in the Dart estuary - March 1996 |
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| 1273 | The evaluation of a pHOX model 962 hand-held dissolved oxygen meter (220/28/T) |
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| 1274 | The evaluation of a WTW model OXI 196 hand-held dissolved oxygen meter (220/29/T) |
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| 1275 | The evaluation of a YSI model 58 hand-held dissolved oxygen meter (220/24/T) |
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