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951Policy and practice for the protection of groundwater : regional appendix South West region
952The available resource methodology : a framework for assessing water resources and abstraction availability : final report
953Controlling the inputs of persistent chemical to marine waters from land-based sources
954An environmental assessment of mercury in mussels (Mytilus edulis L.) in the Mersey Estuary : final report
955The Impact Of Discarded Fishing Line And Tackle On Mute Swans - Phase 1
956Heavy metal contaminants in fish caught from the Mersey Estuary and inshore Liverpool Bay
957A review of the industrial uses of continuous monitoring systems : minerals industry processes
958Herbicides for use in or near the aquatic environment: Priorities for Environmental Quality Standards Development
959Manual for the use of herbicides in or near water : April 1993 : final draft report
960Direct toxicity assessment : a step towards better environmental protection within the UK : business strategy
961Pesticides 2000 : a summary of monitoring of the aquatic environment in England and Wales
962Analysis of airborne platform specifications and operations for the National Rivers Authority by Atlantique Reconnaissance Ltd
963Effectiveness of eutrophication control by phosphorus reduction: development of the INCA-P model
964An investigation of the Madford River pollution incident of 29 July 1989 : November 1989
965Devon area internal report - measurement of dissolved oxygen levels in the Dart estuary - March 1996
966The evaluation of a pHOX model 962 hand-held dissolved oxygen meter (220/28/T)
967The evaluation of a WTW model OXI 196 hand-held dissolved oxygen meter (220/29/T)
968The evaluation of a YSI model 58 hand-held dissolved oxygen meter (220/24/T)
969The evaluation of an ABB Kent-Taylor model 7135 hand-held dissolved oxygen meter (220/30/T)
970An evaluation of discharge and consent compliance policy : a blueprint for the future
971An evaluation of discharge and consent compliance policy : a blueprint for the future : letters from respondents
972The Natural (Baseline) Quality of Groundwaters in England and Wales - Magnesium Limestone of Yorkshire and Northumbria
973Biological river quality 1995 according to the general quality (GQA) scheme [map] : scale 1 : 750 000
974Analysis of bacteriological contamination and accumulation of metals and organics in the mussel (Mytilus edulis)
975Desktop study of methods for the monitoring of particulate emissions from positively pressurised baghouses