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551Quantification of the relationship between effluent quality and biological quality : final report
552Charging for discharges scheme : guidance to the agricultural industry
553Priority and other specific polluting substances and the Water Framework Directive
554'Sea Vigil' water quality monitoring : the Humber estuary 1994
555Evaluation of historical data on the nutrient status of Esthwaite Water, Cumbria
556An Aerial Photograph of Ferry House and The Pearsall Building
557Review of existing practices for fluvial grass management throughout the NRA (213/1/Y)
558The interpretation of rod and net catch data
559Problems with sea trout and salmon in the Western Highlands
560Clear Options towards an operational model for the Lee Valley Reservoirs
561The Cam catchment : recommendations for statutory water quality objectives
562The River Cam catchment management plan : annual monitoring report
563Guidance for estimating the air quality impact of stationary sources - GN 24
564The National Centre for Toxic and Persistent Substances
565Algal blooms in the Lower Tees- Perspectives and prospects
566Pearl Mussel Image: First out of the blocks
567Statement on public consultation for the Dove CMP : July 1995
568The Warwickshire Avon catchment management plan : final plan : October 1994
569FWR - User guide for assessing the impact of combined sewer overflows
570The National Centre for Environmental Data and Surveillance : general leaflet
571The Use of Immuno Based Techniques for Chemical Analysis
572Snapshots of the environment : integrated river basin management
573River quality in England and Wales : a report of the 1990 survey
574Snapshots of the environment : understanding coastal water quality
575The evaluation of EDT QSE 334 ammonium ion selective electrode (220/17/T)