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6551A unified information system to satisfy the NRA's requirement for ecotoxicology information: the specification study
6552Algal Monitoring Report 1999. Report summarising freshwater (cyanobacterial) and marine microalgal monitoring during 1999
6553Algal Monitoring Report 2000. Report summarising freshwater (cyanobacterial) and marine microalgal monitoring during 2000
6554Direct toxicity assessment : a step towards better environmental protection within the UK : business strategy
6555Road transport and the environment
6556Direct toxicity assessment proficiency scheme (DTAPS) : Document 1 : Issue 5
6557Direct toxicity assessment proficiency scheme (DTAPS) : Document 3 : Issue 10
6558Ecotoxicology : a report of the NRA R and D Ecotoxicology Group
6559Ecotoxicology : new approaches
6560Investigating Links Between Bacterial Exotoxins and Unexplained Fish Kills: Phase 3
6561Hydrodat : groundwater monitoring database system. Guidelines
6562Pesticides 2000 : a summary of monitoring of the aquatic environment in England and Wales
6563Analysis of methyl tertiary-butyl ether (MTBE) and other petroleum oxygenates in water
6564Hydrometric asset condition survey action plan 1998 - 2001 : annex 1
6565The results of fish telemetry trails in the river Tawe estuary, 1991
6566Analysis of airborne platform specifications and operations for the National Rivers Authority by Atlantique Reconnaissance Ltd
6567Compact airborne spectrographic imager : CASI
6568Aircraft utilisation study
6569Coastal baseline survey January/February 1995 : results
6570Gulliver
6571National marine baseline survey 1995 : littoral cell 10 : Bardsey Sound to Great Orme
6572Validation of statutory sampling sites using aerial surveillance : case study 4
6573Airborne remote sensing of coastal waters (RanD 328/2/Wx) : draft final report
6574Further development of airborne remote sensing techniques;
6575Effective flood warning the Australian way : the Winston Churchill Travelling Fellowship visit to Australia and New Zealand 23 October - 27 November 1994