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576Clear Options towards an operational model for the Lee Valley Reservoirs
577The Cam catchment : recommendations for statutory water quality objectives
578Guidance for estimating the air quality impact of stationary sources - GN 24
579Introductory guidance on the Agency's contribution to sustainable development (SD1)
580The National Centre for Toxic and Persistent Substances
581Algal blooms in the Lower Tees- Perspectives and prospects
582Acidification of freshwaters: the threat and its mitigation
583Pearl Mussel Image: First out of the blocks
584FWR - User guide for assessing the impact of combined sewer overflows
585The National Centre for Environmental Data and Surveillance : general leaflet
586Project management and the scheme of delegation : a summary guide : April 1995
587The groundwater regulations (Bilingual) : Rheoliadau dwr daear (Bilingual)
588The Use of Immuno Based Techniques for Chemical Analysis
589Land drainage byelaws 1981 and the Thames region flood defence byelaws 1991
590The evaluation of EDT QSE 334 ammonium ion selective electrode (220/17/T)
591The evaluation of ingold ion selective ammonium electrode (220/23/T)
592Rivers of the Isle of Wight fact file
593The Influence of Variations in Flow on General Quality Assessment of Rivers
594Stratification in the Severn Estuary- Physical aspects and biological consequences
595The Mersey estuary : a report on environmental quality
596'Sea Vigil' water quality monitoring : the East coast 1992-1993
597Catches of migratory fish in the River Don, Aberdeenshire
598Stream survey and assessment in the Ashford and Folkestone areas
599Lakes, Ponds and Reservoirs in the Southern Region (NRA)
600The evaluation of an orion ammonium ion selective electrode (220/15/T)