251 | NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group |
252 | Survey of the biological quality of creek systems in the outer Thames Estuary, with special reference to the impact of STW and landfill site discharges |
253 | Regional water quality monitoring and surveillance programme for 1992 : operational investigation programme at Wheal Jane tin mine, Cornwall |
254 | Freshwater phytoplankton : standard methodologies : final draft : biology laboratory procedures manual. Section C : test methods and procedures |
255 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk B in 2012 |
256 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk C in 2011 |
257 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk B in 2013 |
258 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk D in 2012 |
259 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk C in 2013 |
260 | YSI, turbidity and stage data for the Wensum Demonstration Test Catchment's monitoring kiosk A in 2011 |