| 826 | The Status of Headwater Stream Fish Populations and their Tolerance to Low-Level Habitat Degradation |
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| 827 | The Environment Agency's risk portfolio : version 1.0 preliminary draft for comment December 1999 |
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| 828 | Old Bedford incorporating the Middle Level and Ouse Washes : action plan - April 1998 |
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| 829 | Old Bedford incorporating the Middle Level and Ouse Washes : consultation report - May 1997 |
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| 830 | Old Bedford incorporating the Middle Level and Ouse Washes : second annual review : July 2000 |
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| 831 | Scenarios for the operational implementation of remote sensing of snow by satellites : interim report (207/3/N) |
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| 832 | Macrophyte status of the Rivers Test and Itchen - Hampshire : summary report - October 1998 |
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| 833 | The application and validation of in situ ecotoxicological assays at biologically and chemically incongruous sites (379/2/T) |
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| 834 | A report on a baseline survey of the subtidal benthic communities within Portland Harbour (January 1997) |
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| 835 | The available resource methodology : a framework for assessing water resources and abstraction availability : final report |
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| 836 | Controlling the inputs of persistent chemical to marine waters from land-based sources |
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| 837 | An environmental assessment of mercury in mussels (Mytilus edulis L.) in the Mersey Estuary : final report |
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| 838 | Heavy metal contaminants in fish caught from the Mersey Estuary and inshore Liverpool Bay |
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| 839 | A review of the industrial uses of continuous monitoring systems : minerals industry processes |
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| 840 | Herbicides for use in or near the aquatic environment: Priorities for Environmental Quality Standards Development |
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| 841 | Manual for the use of herbicides in or near water : April 1993 : final draft report |
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| 842 | Direct toxicity assessment : a step towards better environmental protection within the UK : business strategy |
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| 843 | Pesticides 2000 : a summary of monitoring of the aquatic environment in England and Wales |
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| 844 | Analysis of airborne platform specifications and operations for the National Rivers Authority by Atlantique Reconnaissance Ltd |
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| 845 | Devon area internal report - measurement of dissolved oxygen levels in the Dart estuary - March 1996 |
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| 846 | The evaluation of a pHOX model 962 hand-held dissolved oxygen meter (220/28/T) |
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| 847 | The evaluation of a WTW model OXI 196 hand-held dissolved oxygen meter (220/29/T) |
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| 848 | The evaluation of a YSI model 58 hand-held dissolved oxygen meter (220/24/T) |
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| 849 | The evaluation of an ABB Kent-Taylor model 7135 hand-held dissolved oxygen meter (220/30/T) |
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| 850 | An evaluation of discharge and consent compliance policy : a blueprint for the future |
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