| 576 | Modelling phytoplankton development in the proposed Cardiff Bay Barrage
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| 577 | The Impact Of Particulate Outputs Associated With Timber Harvesting |
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| 578 | The evaluation of Grant/YSU 3800 water quality monitor |
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| 579 | PVC : an evaluation using the Natural Step framework |
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| 580 | Recommendations For The Processing And Presentation Of Groundwater Quality Data |
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| 581 | Quality audit of biological samples for the 1991 river quality survey |
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| 582 | Pesticides in the aquatic environment 1997 full report |
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| 583 | The Wandle, Beverley Brook, Hogsmill catchment management plan : consultation report : November 1994 |
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| 584 | The precious resource : a brief guide to managing our water resources |
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| 585 | Quantification of the relationship between effluent quality and biological quality : final report |
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| 586 | Charging for discharges scheme : guidance to the agricultural industry |
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| 587 | Priority and other specific polluting substances and the Water Framework Directive |
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| 588 | 'Sea Vigil' water quality monitoring : the Humber estuary 1994 |
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| 589 | Evaluation of historical data on the nutrient status of Esthwaite Water, Cumbria
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| 590 | An Aerial Photograph of Ferry House and The Pearsall Building |
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| 591 | Review of existing practices for fluvial grass management throughout the NRA (213/1/Y) |
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| 592 | The interpretation of rod and net catch data |
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| 593 | Problems with sea trout and salmon in the Western Highlands |
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| 594 | Clear Options towards an operational model for the Lee Valley Reservoirs |
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| 595 | The Cam catchment : recommendations for statutory water quality objectives |
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| 596 | The River Cam catchment management plan : annual monitoring report |
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| 597 | Guidance for estimating the air quality impact of stationary sources - GN 24 |
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| 598 | The National Centre for Toxic and Persistent Substances |
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| 599 | Acidification of freshwaters: the threat and its mitigation |
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| 600 | Pearl Mussel Image: First out of the blocks |
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