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1176Linking hydrology and ecology : River Wissey : Annex B aquatic macrophytes of the River Wissey
1177The available resource methodology : a framework for assessing water resources and abstraction availability : final report
1178Controlling the inputs of persistent chemical to marine waters from land-based sources
1179An environmental assessment of mercury in mussels (Mytilus edulis L.) in the Mersey Estuary : final report
1180The Impact Of Discarded Fishing Line And Tackle On Mute Swans - Phase 1
1181Heavy metal contaminants in fish caught from the Mersey Estuary and inshore Liverpool Bay
1182A review of the industrial uses of continuous monitoring systems : minerals industry processes
1183Herbicides for use in or near the aquatic environment: Priorities for Environmental Quality Standards Development
1184Manual for the use of herbicides in or near water : April 1993 : final draft report
1185Direct toxicity assessment : a step towards better environmental protection within the UK : business strategy
1186Pesticides 2000 : a summary of monitoring of the aquatic environment in England and Wales
1187Analysis of airborne platform specifications and operations for the National Rivers Authority by Atlantique Reconnaissance Ltd
1188Effectiveness of eutrophication control by phosphorus reduction: development of the INCA-P model
1189An investigation of the Madford River pollution incident of 29 July 1989 : November 1989
1190Devon area internal report - measurement of dissolved oxygen levels in the Dart estuary - March 1996
1191The evaluation of a pHOX model 962 hand-held dissolved oxygen meter (220/28/T)
1192The evaluation of a WTW model OXI 196 hand-held dissolved oxygen meter (220/29/T)
1193The evaluation of a YSI model 58 hand-held dissolved oxygen meter (220/24/T)
1194The evaluation of an ABB Kent-Taylor model 7135 hand-held dissolved oxygen meter (220/30/T)
1195Definition of terms used in the assessment information management system (AIMS) : guidance note 5
1196The Natural (Baseline) Quality of Groundwaters in England and Wales - Magnesium Limestone of Yorkshire and Northumbria
1197Biological river quality 1995 according to the general quality (GQA) scheme [map] : scale 1 : 750 000
1198Analysis of bacteriological contamination and accumulation of metals and organics in the mussel (Mytilus edulis)
1199Desktop study of methods for the monitoring of particulate emissions from positively pressurised baghouses
1200Lower Lee fish mortalities associated with rainfall : including the event of 7/8th September 1993