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