| 251 | Review of water quality instrumentation : April 1995 |
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| 252 | Development of marine phytoplankton methodology and quality assurance procedures : second draft |
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| 253 | The identification and investigation of a dinoflagellate bloom in Mounts Bay, Cornwall |
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| 254 | Control samples for ph determination in low ionic strength waters |
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| 255 | European collaboration to develop standard sediment toxicity test methods (396/4/T) : interim report |
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| 256 | Silloth sediment survey : April, July 1990 |
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| 257 | An assessment of river water quality in the River Kenn |
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| 258 | Development of marine phytoplankton methodology and quality assurance procedures : second draft |
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| 259 | Sampling Littoral Diatoms in Lakes for Ecological Status Assessments: a Literature Review |
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| 260 | Pesticide residues in fish taken from the Newlyn River (1992) |
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| 261 | Meiofaunal assemblages of the Thames Estuary, April 1989-March 1990 : modules I-III : a study of the meiofaunal communities present in sediment samples collected by the National Rivers Authority, Thames Region |
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| 262 | Doe Lea restoration study : the work of WRc |
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| 263 | Water quality investigations in the Newlyn river catchment |
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| 264 | Comparison of load estimation from grab an flow-proportioning samples |
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| 265 | Regional water quality monitoring and surveillance programme for 1992 : operational investigation programme at Wheal Jane tin mine, Cornwall |
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| 266 | Investigating the Applicability of Passive Sampling Devices to Pesticide Monitoring |
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| 267 | Freshwater phytoplankton : standard methodologies : final draft : biology laboratory procedures manual. Section C : test methods and procedures |
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| 268 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk B in 2012 |
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| 269 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk C in 2011 |
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| 270 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk B in 2013 |
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| 271 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk D in 2012 |
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| 272 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk C in 2013 |
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| 273 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk A in 2011 |
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