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5651Herbarium Image: Carex aquatilis
5652Herbarium Image: Persicaria amphibia
5653Herbarium Image: Persicaria amphibia
5654Herbarium Image: Persicaria hydropiper
5655Herbarium Image: Eleocharis palustris
5656Herbarium Image: Persicaria amphibia
5657Herbarium Image: Schoenoplectus lacustris
5658Herbarium Image: Schoenoplectus tabernaemontani
5659Best Management Practices to Reduce Diffuse Pollution from Agriculture
5660A report on the use of pesticides at two Hampshire watercress farms
5661A field guide to the British seaweeds : as required for assistance in the classification of water bodies under the Water Framework Directive
5662Radiation Experiments on Aquatic Organisms
5663Impact Of Conifer Harvesting And Replanting On Upland Water Quality
5664Fact sheet for the RBCA tool kit for chemical releases
5665A draft code of practice for analytical quality control in National Rivers Authority laboratories
5666Control samples for ph determination in low ionic strength waters
5667Proposals to introduce operator monitoring assessment for emissions to air from processes regulated under integrated pollution control : consultation paper
5668Developing Quality Assurance for Fish Counter Data - Phase 1: An Assessment of the Salmonid Fish Counter Network in England and Wales
5669Quality assurance for phytoplankton data
5670Quality in Corporate Planning 1993
5671STREAM thematic network : standards, measurement, testing and research in environmental instrumentation and monitoring
5672Annual N2O measurements and associated data: AC0213, Devon, 2012
5673Evaluation of a YSI-6000 submersible water quality monitor
5674Evaluation of an ELE/pHOX sub-logger submersible water quality monitor
5675Blue-green algal survey of Lower Clicker Quarry