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701Development of Operational and Policy Guidance on the Use of Hydrogen Peroxide
702The National Groundwater and Contaminated Land Centre (NGWCLC)
703The evaluation of a Philips ammonium ion selective electrode (220/14/T)
704The greening of Grasmere: its plankton periodicity in 1988
705A strategic review of the petroleum refinery Industry Sector
706Guidelines for river corridor surveys in the NRA : February 1992. draft 3
707Second annual review of the Sid/Otter catchment management plan 1999
708Contribution of small streams to potential fish production in the Conwy catchment
709NRA strategy for reducing the concentration of pesticides in controlled waters
710The ecology and management of riverine trees : interim report
711Low-cost modifications of the Crump weir to improve fish passage
712Policy and practice for the protection of groundwater - Thames region appendix
713Policy and practice for the protection of floodplains
714'Sea Vigil' water quality monitoring : the Wash 1992-1993
715Second annual review of the Seaton, Looe and Fowey catchment management plan
716The Yarrow catchment : recommendations for statutory water quality objectives
717Leachate Migration Through The Triassic Sandstones At Burntstump Landfill And Elsewhere
718The evaluation of a Nico Elit 051 ammonium ion selective electrode (220/16/T)
719Guidance on the use of Bioassays in Ecological Risk Assessment
720The National Rivers Authority employee attitude survey : summary
721The Use of a Hydroacoustic Counter for Assessing Salmon Stocks
722Geochemical process modelling : progress report for the period Jan - March 1993 (0295/11/A)
723Pesticides in the aquatic environment 1997 : executive summary
724Targeted Monitoring Programme for Pharmaceuticals in the Aquatic Environment
725Mercury and methylmercury in the river Yare, Norfolk (OI/420/8/A)