| 5501 | Buffer zones for conservation of rivers and bankside habitats : draft final report |
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| 5502 | The Test catchment southern : recommendations for statutory water quality objectives |
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| 5503 | The Worcestershire Stour catchment : recommendations for statutory water quality objectives |
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| 5504 | Time of travel study on the River Wandle under two different flow conditions |
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| 5505 | An assessment of river water quality in the River Kenn |
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| 5506 | River Hayle catchment river water quality classification 1990 |
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| 5507 | River Hayle catchment river water quality classification 1991 |
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| 5508 | Trewinnard Manor Pond pollution incident November 1990 : draft internal report |
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| 5509 | A Strategic Review Of Sheep Dipping |
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| 5510 | Contaminants entering the sea : a report on contaminant loads entering the seas around England and Wales 1990-1993 |
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| 5511 | The Natural (Baseline) Quality of Groundwaters in England and Wales - Magnesium Limestone of Yorkshire and Northumbria |
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| 5512 | A survey of ferruginous minewater impacts in the Welsh coalfields |
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| 5513 | A simple key to canal water quality using a biological technique |
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| 5514 | Investigations into the status of fisheries, biological and water quality in the River Pelenna catchment, prior to the treatment of discharges from abandoned coal mines : PL/EAW/95/3 |
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| 5515 | NRA Welsh Region South West Area Minewaters Workshop, 23 May 1995, Swansea : summary report |
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| 5516 | The impact of ferruginous minewater break-outs on the environmental quality of the Rivers Rhymney, Ebbw and Sirhowy : summary report |
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| 5517 | A survey of ferruginous minewater impacts in the Welsh coalfields |
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| 5518 | Dioxins and the River Doe Lea : plain English report |
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| 5519 | 1994 general quality assessment (GQA) Cornwall area |
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| 5520 | Kennet catchment : time of travel studies final report |
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| 5521 | Chlorohyll and Phosphorus Classifications for UK Lakes |
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| 5522 | Investigating the feasibility of using neural networks to derive chlorophyll a prediction algorithms for case 2 waters |
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| 5523 | Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report |
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| 5524 | Herbarium Image: Phalaris arundinacea |
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| 5525 | Herbarium Image: Orobanche elatior |
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