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1226Linking hydrology and ecology : River Wissey : Annex B aquatic macrophytes of the River Wissey
1227Policy and practice for the protection of groundwater : regional appendix South West region
1228The available resource methodology : a framework for assessing water resources and abstraction availability : final report
1229Controlling the inputs of persistent chemical to marine waters from land-based sources
1230An environmental assessment of mercury in mussels (Mytilus edulis L.) in the Mersey Estuary : final report
1231The Impact Of Discarded Fishing Line And Tackle On Mute Swans - Phase 1
1232Heavy metal contaminants in fish caught from the Mersey Estuary and inshore Liverpool Bay
1233A review of the industrial uses of continuous monitoring systems : minerals industry processes
1234Manual for the use of herbicides in or near water : April 1993 : final draft report
1235Direct toxicity assessment : a step towards better environmental protection within the UK : business strategy
1236Pesticides 2000 : a summary of monitoring of the aquatic environment in England and Wales
1237Analysis of airborne platform specifications and operations for the National Rivers Authority by Atlantique Reconnaissance Ltd
1238Effectiveness of eutrophication control by phosphorus reduction: development of the INCA-P model
1239An investigation of the Madford River pollution incident of 29 July 1989 : November 1989
1240Devon area internal report - measurement of dissolved oxygen levels in the Dart estuary - March 1996
1241The evaluation of a pHOX model 962 hand-held dissolved oxygen meter (220/28/T)
1242The evaluation of a WTW model OXI 196 hand-held dissolved oxygen meter (220/29/T)
1243The evaluation of a YSI model 58 hand-held dissolved oxygen meter (220/24/T)
1244The evaluation of an ABB Kent-Taylor model 7135 hand-held dissolved oxygen meter (220/30/T)
1245Definition of terms used in the assessment information management system (AIMS) : guidance note 5
1246Biological river quality 1995 according to the general quality (GQA) scheme [map] : scale 1 : 750 000
1247Analysis of bacteriological contamination and accumulation of metals and organics in the mussel (Mytilus edulis)
1248Desktop study of methods for the monitoring of particulate emissions from positively pressurised baghouses
1249Lower Lee fish mortalities associated with rainfall : including the event of 7/8th September 1993
1250Integrated river corridor assessment : a pilot study of the rivers Wansbeck and North Tyne in Northumbria