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1126The application and validation of in situ ecotoxicological assays at biologically and chemically incongruous sites (379/2/T)
1127A report on a baseline survey of the subtidal benthic communities within Portland Harbour (January 1997)
1128Linking hydrology and ecology : River Wissey : Annex B aquatic macrophytes of the River Wissey
1129Policy and practice for the protection of groundwater : regional appendix South West region
1130Controlling the inputs of persistent chemical to marine waters from land-based sources
1131An environmental assessment of mercury in mussels (Mytilus edulis L.) in the Mersey Estuary : final report
1132The Impact Of Discarded Fishing Line And Tackle On Mute Swans - Phase 1
1133Heavy metal contaminants in fish caught from the Mersey Estuary and inshore Liverpool Bay
1134Herbicides for use in or near the aquatic environment: Priorities for Environmental Quality Standards Development
1135Manual for the use of herbicides in or near water : April 1993 : final draft report
1136Direct toxicity assessment : a step towards better environmental protection within the UK : business strategy
1137Analysis of airborne platform specifications and operations for the National Rivers Authority by Atlantique Reconnaissance Ltd
1138Effectiveness of eutrophication control by phosphorus reduction: development of the INCA-P model
1139An investigation of the Madford River pollution incident of 29 July 1989 : November 1989
1140Devon area internal report - measurement of dissolved oxygen levels in the Dart estuary - March 1996
1141The evaluation of a pHOX model 962 hand-held dissolved oxygen meter (220/28/T)
1142The evaluation of a WTW model OXI 196 hand-held dissolved oxygen meter (220/29/T)
1143The evaluation of a YSI model 58 hand-held dissolved oxygen meter (220/24/T)
1144The evaluation of an ABB Kent-Taylor model 7135 hand-held dissolved oxygen meter (220/30/T)
1145Definition of terms used in the assessment information management system (AIMS) : guidance note 5
1146The Natural (Baseline) Quality of Groundwaters in England and Wales - Magnesium Limestone of Yorkshire and Northumbria
1147Analysis of bacteriological contamination and accumulation of metals and organics in the mussel (Mytilus edulis)
1148Lower Lee fish mortalities associated with rainfall : including the event of 7/8th September 1993
1149Integrated river corridor assessment : a pilot study of the rivers Wansbeck and North Tyne in Northumbria
1150River Teign corridor survey : prepared by Ecologue for the National Rivers Authority (South West Region)