| 551 | Discharge monitoring in the Kennet catchment. Part 2 : ecological effects of fish farm discharges |
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| 552 | Appraisal of nature conservation and recreation improvement measures at the Environment Agency's estates |
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| 553 | Digital groundwater vulnerability maps : 1 : 100,000 series. Policy and practice for the protection of groundwater |
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| 554 | Review of environmental audits prepared by county councils in the North East area |
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| 555 | Lower Colne catchment management plan for flood defence and the environment : third draft |
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| 556 | River restoration : a stepping stone to urban regeneration highlighting the opportunities in south London |
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| 557 | The Status of Headwater Stream Fish Populations and their Tolerance to Low-Level Habitat Degradation |
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| 558 | The Environment Agency's risk portfolio : version 1.0 preliminary draft for comment December 1999 |
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| 559 | Old Bedford incorporating the Middle Level and Ouse Washes : action plan - April 1998 |
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| 560 | Old Bedford incorporating the Middle Level and Ouse Washes : second annual review : July 2000 |
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| 561 | Scenarios for the operational implementation of remote sensing of snow by satellites : interim report (207/3/N) |
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| 562 | Macrophyte status of the Rivers Test and Itchen - Hampshire : summary report - October 1998 |
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| 563 | The application and validation of in situ ecotoxicological assays at biologically and chemically incongruous sites (379/2/T) |
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| 564 | Controlling the inputs of persistent chemical to marine waters from land-based sources |
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| 565 | The Impact Of Discarded Fishing Line And Tackle On Mute Swans - Phase 1 |
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| 566 | A review of the industrial uses of continuous monitoring systems : minerals industry processes |
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| 567 | Manual for the use of herbicides in or near water : April 1993 : final draft report |
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| 568 | Direct toxicity assessment : a step towards better environmental protection within the UK : business strategy |
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| 569 | Analysis of airborne platform specifications and operations for the National Rivers Authority by Atlantique Reconnaissance Ltd |
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| 570 | Effectiveness of eutrophication control by phosphorus reduction: development of the INCA-P model |
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| 571 | The evaluation of a pHOX model 962 hand-held dissolved oxygen meter (220/28/T) |
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| 572 | The evaluation of a WTW model OXI 196 hand-held dissolved oxygen meter (220/29/T) |
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| 573 | The evaluation of a YSI model 58 hand-held dissolved oxygen meter (220/24/T) |
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| 574 | The evaluation of an ABB Kent-Taylor model 7135 hand-held dissolved oxygen meter (220/30/T) |
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| 575 | An evaluation of discharge and consent compliance policy : a blueprint for the future |
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