| 826 | Water pollution incidents in England and Wales 1994 : report of the National Rivers Authority |
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| 827 | Pesticides 1998 : a summary of monitoring of the aquatic environment in England and Wales |
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| 828 | Planning application for the proposed Maidenhead, Windsor and Eton flood alleviation scheme January 1991 |
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| 829 | Database and atlas of aquatic vascular plants in the British Isles : part 1 species accounts |
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| 830 | Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk D |
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| 831 | The evaluation of a Partech model 5100 hand-held dissolved oxygen meter (220/26/T) |
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| 832 | Hope Cove : non-compliance in 1998 with the European Community bathing water directive (76/160/EEC) |
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| 833 | Catches of Brown Trout in the River Don - Preliminary analysis of Angler's Returns |
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| 834 | Front Cover of A Key to the British Freshwater Cyclopid and Calanoid Copepods, with Ecological Notes |
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| 835 | Manual for the use of herbicides in or near water : January 1993 : final draft report |
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| 836 | Investigation into the storm overflow discharge regime of Hill Barton Seawage Treatment Works Okehampton |
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| 837 | Survey of physical characteristics of salmon spawning riffles in the river North Tyne
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| 838 | Nitrates in surface water, inputs and seasonality- Progress report for the period April- December 1987 |
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| 839 | ISCO automatic water sample data for the Wensum Demonstration Test Catchment's Kiosk A |
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| 840 | The development of a portable battery-powered telemetry system for use in water quality investigations |
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| 841 | Thames 21 - a planning perspective and a sustainable strategy for the Thames Region : consultation draft |
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| 842 | River Meavy salmon and sea trout populations : assessment of the impact of flows |
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| 843 | Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk C |
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| 844 | ISCO automatic water sample data for the Wensum Demonstration Test Catchment's Kiosk D |
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| 845 | Problems and solutions in the management of open seas fisheries for Atlantic salmon |
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| 846 | Routine laboratory water sample data for the Wensum Demonstration Test Catchment's monitoring kiosk M |
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| 847 | Road transport and the environment risk assessment and options appraisal : final summary report |
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| 848 | YSI, turbidity and discharge data for the Wensum Demonstration Test Catchment's monitoring kiosk M in 2013 |
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| 849 | Space to live, space to play : a recreation strategy for the River Thames : appendices |
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| 850 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk A in 2014 |
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