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876Macrophyte status of the Rivers Test and Itchen - Hampshire : summary report - October 1998
877The application and validation of in situ ecotoxicological assays at biologically and chemically incongruous sites (379/2/T)
878A report on a baseline survey of the subtidal benthic communities within Portland Harbour (January 1997)
879Policy and practice for the protection of groundwater : regional appendix South West region
880The available resource methodology : a framework for assessing water resources and abstraction availability : final report
881Controlling the inputs of persistent chemical to marine waters from land-based sources
882An environmental assessment of mercury in mussels (Mytilus edulis L.) in the Mersey Estuary : final report
883Heavy metal contaminants in fish caught from the Mersey Estuary and inshore Liverpool Bay
884A review of the industrial uses of continuous monitoring systems : minerals industry processes
885Herbicides for use in or near the aquatic environment: Priorities for Environmental Quality Standards Development
886Manual for the use of herbicides in or near water : April 1993 : final draft report
887Direct toxicity assessment : a step towards better environmental protection within the UK : business strategy
888Pesticides 2000 : a summary of monitoring of the aquatic environment in England and Wales
889Analysis of airborne platform specifications and operations for the National Rivers Authority by Atlantique Reconnaissance Ltd
890Devon area internal report - measurement of dissolved oxygen levels in the Dart estuary - March 1996
891The evaluation of a pHOX model 962 hand-held dissolved oxygen meter (220/28/T)
892The evaluation of a WTW model OXI 196 hand-held dissolved oxygen meter (220/29/T)
893The evaluation of a YSI model 58 hand-held dissolved oxygen meter (220/24/T)
894The evaluation of an ABB Kent-Taylor model 7135 hand-held dissolved oxygen meter (220/30/T)
895An evaluation of discharge and consent compliance policy : a blueprint for the future
896An evaluation of discharge and consent compliance policy : a blueprint for the future : letters from respondents
897Definition of terms used in the assessment information management system (AIMS) : guidance note 5
898The Natural (Baseline) Quality of Groundwaters in England and Wales - Magnesium Limestone of Yorkshire and Northumbria
899Analysis of bacteriological contamination and accumulation of metals and organics in the mussel (Mytilus edulis)
900Desktop study of methods for the monitoring of particulate emissions from positively pressurised baghouses