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