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376Guidance for estimating the air quality impact of stationary sources - GN 24
377Introductory guidance on the Agency's contribution to sustainable development (SD1)
378The National Centre for Toxic and Persistent Substances
379Acidification of freshwaters: the threat and its mitigation
380Pearl Mussel Image: First out of the blocks
381FWR - User guide for assessing the impact of combined sewer overflows
382The groundwater regulations (Bilingual) : Rheoliadau dwr daear (Bilingual)
383The Use of Immuno Based Techniques for Chemical Analysis
384Land drainage byelaws 1981 and the Thames region flood defence byelaws 1991
385River quality in England and Wales : a report of the 1990 survey
386Snapshots of the environment : understanding coastal water quality
387The evaluation of EDT QSE 334 ammonium ion selective electrode (220/17/T)
388The evaluation of ingold ion selective ammonium electrode (220/23/T)
389Stratification in the Severn Estuary- Physical aspects and biological consequences
390Catches of migratory fish in the River Don, Aberdeenshire
391Stream survey and assessment in the Ashford and Folkestone areas
392Lakes, Ponds and Reservoirs in the Southern Region (NRA)
393The 1990 river and estuary classification survey of England and Wales
394The evaluation of an orion ammonium ion selective electrode (220/15/T)
395An Independent Review of the Defra/EA Research and Development Joint
396Anthropogenic Impacts on the Hydrology of Rivers and Lochs
397Dissemination of the Revitalised FEH Rainfall-runoff Method
398General guide to the prevention of water pollution
399Guidance on the use of Soil Screening Values for Ecological Risk Assessment
400Highway runoff: Effects of soluble pollutants on the ecology of receiving waters