26 | Rural sewage pollution in the '90s : report of the rural sewerage project 1993/4 |
27 | Swords water quality study - phase 1 : modelling the water quality of the River Thames |
28 | Investigation into the chemicals present and entering the Stover Lake, Stover Country Park |
29 | An investigation into the water quality of the River Waldon during wet weather |
30 | Report on the control of discharges of titanium dioxide waste to the Humber Estuary : main report |
31 | A report on the 1992 strategic stock assessment survey of the upper Dewent catchment and the River Marron with particular reference to salmonids |
32 | Report on the results of a comparison of data from two surveys of the microfauna of the wash carried out in 1991 and 1993 |
33 | An assessment of cormorant depredation on stillwater coarse fish populations in the Lea and Colne valleys of the Thames catchment |
34 | An investigation of ecological change in the rivers Kennet and Lambourn. Report for the period April 1998-March 1999 |
35 | Investigation into the 1999 failure of the European Community bathing waters directive at Teignmouth Town Beach (2001) |
36 | Biological investigation of the impact of Ivybridge sewage treatment works discharge to the River Erme, May 1991 |
37 | A review of the quality and status of the Suffolk and Essex estuaries and coastal waters : volume 2 : final draft |
38 | A report on the 1993 strategic stock assessment survey of the Eamont catchment with particular reference to salmonid fish |
39 | An investigation of ecological change in the rivers Kennet and Lambourn. Progress report for the period April 1999-March 2000 |
40 | An Assessment of Cormorant Depredation on Stillwater Coarse Fish Populations in the Lea and Colne Valleys of the Thames Catchment |
41 | The Natural (Baseline) Quality Of Groundwaters In England And Wales: The Permo-Triassic Sandstones Of Cumbria, North-West England; |
42 | An investigation of ecological change in the rivers Kennet and Lambourn. Progress report for the period April 1999-March 2001 |
43 | Time of travel for the Greadon Farm pollution incident on the Upper Torridge of 19th August 1997 (1997) |
44 | Health effects of sea bathing (WMI 9021) - Phase III final report to the Department of the Environment |
45 | A report on the strategic stock assessment survey of the River Esk catchment 1994 with particular reference to salmonids |
46 | A report on the 1992 strategic stock assessment survey of the upper Eden catchment with particular reference to salmonids |
47 | An investigation of ecological change in the rivers Kennet and Lambourn. Report for the period April 2000 - March 2001 |
48 | The Use Of DNA Fingerprinting To Study The Population Dynamics Of Otters (Lutra Lutra) In Southern Britiain - A Feasibility Study |
49 | An assessment of the impact of Berkhamsted and Maple Lodge STWs on the Grand Union canal based on macroinvertebrate surveys |
50 | Analysis of benthic macro-invertebrate samples collected by the NRA during 1989 and 1990 from various habitats in the River Delph |