1 | Guidance on the use of Bioassays in Ecological Risk Assessment |
2 | Variability in Mobile Acoustic Fish Community Assessment |
3 | Physical environment for river invertebrate communities |
4 | Regional water quality monitoring and surveillance programme for 1992 : biological impact assessment of discharges on receiving waters |
5 | Regional water quality monitoring and surveillance programme for 1992 : quality assessment of river waters |
6 | Biological investigation into the impact of the storm overflow at Middle Marwood Sewage Treatment Works |
7 | Biological Assessment Methods: Controlling the Quality of Biological Data. Package 1 The variability of data used for assessing the biological condition of rivers |
8 | Regional water quality monitoring and surveillance programme for 1992 : impact assessment of effluent discharges on receiving waters |
9 | Stream survey and assessment in the Ashford and Folkestone areas |
10 | Dee catchment management plan : biological assessment of agricultural catchments |
11 | Analysis of benthic macro-invertebrate samples collected by the NRA during 1989 and 1990 from various habitats in the River Delph |
12 | A Proposed Scheme To Ensure The Quality Of Data Generated By Laboratories Undertaking Regulatory Ecotoxicological Testing |
13 | Environmental assessment of selected abandoned minewaters in the North East region |
14 | River Glen : river channel assessment : executive summary |
15 | Regional water quality monitoring and surveillance programme for 1992 : biological quality assessment of rivers |