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1326A report on a baseline survey of the subtidal benthic communities within Portland Harbour (January 1997)
1327Linking hydrology and ecology : River Wissey : Annex B aquatic macrophytes of the River Wissey
1328Policy and practice for the protection of groundwater : regional appendix South West region
1329The available resource methodology : a framework for assessing water resources and abstraction availability : final report
1330Controlling the inputs of persistent chemical to marine waters from land-based sources
1331An environmental assessment of mercury in mussels (Mytilus edulis L.) in the Mersey Estuary : final report
1332The Impact Of Discarded Fishing Line And Tackle On Mute Swans - Phase 1
1333Heavy metal contaminants in fish caught from the Mersey Estuary and inshore Liverpool Bay
1334A review of the industrial uses of continuous monitoring systems : minerals industry processes
1335Herbicides for use in or near the aquatic environment: Priorities for Environmental Quality Standards Development
1336Manual for the use of herbicides in or near water : April 1993 : final draft report
1337Direct toxicity assessment : a step towards better environmental protection within the UK : business strategy
1338Pesticides 2000 : a summary of monitoring of the aquatic environment in England and Wales
1339Analysis of airborne platform specifications and operations for the National Rivers Authority by Atlantique Reconnaissance Ltd
1340Effectiveness of eutrophication control by phosphorus reduction: development of the INCA-P model
1341An investigation of the Madford River pollution incident of 29 July 1989 : November 1989
1342Devon area internal report - measurement of dissolved oxygen levels in the Dart estuary - March 1996
1343The evaluation of a pHOX model 962 hand-held dissolved oxygen meter (220/28/T)
1344The evaluation of a WTW model OXI 196 hand-held dissolved oxygen meter (220/29/T)
1345The evaluation of a YSI model 58 hand-held dissolved oxygen meter (220/24/T)
1346The evaluation of an ABB Kent-Taylor model 7135 hand-held dissolved oxygen meter (220/30/T)
1347An evaluation of discharge and consent compliance policy : a blueprint for the future
1348An evaluation of discharge and consent compliance policy : a blueprint for the future : letters from respondents
1349Definition of terms used in the assessment information management system (AIMS) : guidance note 5
1350Monitoring the effects of a combined sewer overflow discharge to a small watercourse in South Wales