| 6526 | An assessment of river water quality in the River Kenn |
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| 6527 | River Hayle catchment river water quality classification 1990 |
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| 6528 | River Hayle catchment river water quality classification 1991 |
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| 6529 | Trewinnard Manor Pond pollution incident November 1990 : draft internal report |
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| 6530 | A Strategic Review Of Sheep Dipping |
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| 6531 | Contaminants entering the sea : a report on contaminant loads entering the seas around England and Wales 1990-1993 |
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| 6532 | The Natural (Baseline) Quality of Groundwaters in England and Wales - Magnesium Limestone of Yorkshire and Northumbria |
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| 6533 | A survey of ferruginous minewater impacts in the Welsh coalfields |
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| 6534 | A simple key to canal water quality using a biological technique |
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| 6535 | NRA Welsh Region South West Area Minewaters Workshop, 23 May 1995, Swansea : summary report |
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| 6536 | A survey of ferruginous minewater impacts in the Welsh coalfields |
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| 6537 | Dioxins and the River Doe Lea : plain English report |
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| 6538 | A review of the industrial uses of continuous monitoring systems : incineration processes : a report produced for NCCA and ETSU by Entec |
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| 6539 | 1994 general quality assessment (GQA) Cornwall area |
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| 6540 | Chlorohyll and Phosphorus Classifications for UK Lakes |
|---|
| 6541 | Investigating the feasibility of using neural networks to derive chlorophyll a prediction algorithms for case 2 waters |
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| 6542 | Temporal variability in chlorophyll-a : concentrations in the coastal environment : final report |
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| 6543 | Herbarium Image: Phalaris arundinacea |
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| 6544 | Herbarium Image: Orobanche elatior |
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| 6545 | An appraisal of the options for the structure of the water resources function in Thames Region NRA |
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| 6546 | Grey tide against green marsh : sea defences in East Anglia : synopsis of proceedings of conference held at Snape on 1st November 1991 |
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| 6547 | Public participation and the Water Framework Directive |
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| 6548 | Biological river quality 1995 according to the general quality (GQA) scheme [map] : scale 1 : 750 000 |
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| 6549 | Chemical river quality 1993-1995 according to the general quality assessment (GQA) scheme [map] : scale 1 : 750 000 |
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| 6550 | An investigation into bathing water quality at Millendreath |
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