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1351Analysis of growth and survival of sea trout from the Welsh Dee: Interim Report, 2nd April 2000
1352Environmental protection draft report - united mines landfill appraisal of the disposal of waste from falmouth docks tip
1353Report on US study tour of engineered wetlands for the treatment of waste water and mine drainage, March 1992
1354An audit of performance in the analysis of biological samples in 2000. Environment Agency : primary audit : C00158/10
1355The faunal richness of headwater streams. Stage 3 : impact of agricultural activities. Volume 2 : appendices (Note 392)
1356Audit of priority species of rivers and wetlands : Marsh Fritillary in South Hampshire and the Isle of Wight
1357Light scattering in sewage effluent: a study of the effects of angle of scatter an common light sources
1358Chemical river quality 1993-1995 according to the general quality assessment (GQA) scheme [map] : scale 1 : 750 000
1359Foot and Mouth Disease Epidemic. Disposal of culled stock by burial : guidance and reference data for the protection of controlled waters
1360Water resources for the future : a strategy for Wales (Bilingual) : Adnoddau dwr ar gyfer y dyfodol (Bilingual)
1361Developing Quality Assurance for Fish Counter Data - Phase 1: An Assessment of the Salmonid Fish Counter Network in England and Wales
1362Thames estuary benthic programme : a site by site report on the results of macroinvertebrate surveys undertaken during 1990-91
1363International Workshop On The Uses Of Backfill In Nuclear Waste Repositories, Carlsbad, New Mexico, Usa, May 1998
1364Investigating the feasibility of using neural networks to derive chlorophyll a prediction algorithms for case 2 waters
1365NRA guidance on the acceptable leachable values for contaminated material to be deposited in Upper Tame catchment
1366River Glen : river channel assessment : annex C : an assessment of low flow characteristics of the River Glen, Lincolnshire
1367The development of macroinvertebrate keys using TWINSPAN classification : a manual for NRA biologists (001/10/W) : draft final report
1368NRA response to using water wisely : a consultation paper published by the DoE/Welsh Office July 1992
1369Endocrine Modulating Effects of Wastewater Treatment Works Effluents: 'Sensitive Windows' for inducing germ-cell intersex in the Roach (Rutilus rutilus)
1370Environmental Impacts of Alkylphenol Ethoxylates and Carboxylates. Part 1 Proposals for the Development of Environmental Quality Standards
1371Investigating the effect of changing retention time in natural and artificial water bodies: Simulations using PROTECH-D
1372The use of constructed wetlands to ameliorate metal-rich mine waters. Stage 1 : study of natural wetlands
1373Audit of priority species of rivers and wetlands : white-clawed crayfish Austropotambius pallipes in South Hampshire and the Isle of Wight
1374Audit of priority species of rivers and wetlands : kingfisher Alcedo atthis in South Hampshire and the Isle of Wight
1375Torridge data report : biological monitoring of organic inputs to the study catchments using rapid biological assessment keys