| 6851 | River Fal catchment river water quality classification 1991 |
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| 6852 | River Par and Crinnis catchment river water quality classification 1990 |
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| 6853 | River Par and Crinnis catchment river water quality classification 1991 |
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| 6854 | St Austell River and south Cornwall coastal streams catchment river water quality classification 1990 |
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| 6855 | The identification and investigation of a dinoflagellate bloom in Mounts Bay, Cornwall |
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| 6856 | A draft code of practice for analytical quality control in National Rivers Authority laboratories |
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| 6857 | Control samples for ph determination in low ionic strength waters |
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| 6858 | Proposals to introduce operator monitoring assessment for emissions to air from processes regulated under integrated pollution control : consultation paper |
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| 6859 | Cryptosporidium in drinking water : survey of occurrence. June 1991 |
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| 6860 | River Cober catchment river water quality classification 1990 |
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| 6861 | Developing Quality Assurance for Fish Counter Data - Phase 1: An Assessment of the Salmonid Fish Counter Network in England and Wales |
|---|
| 6862 | Quality assurance for phytoplankton data |
|---|
| 6863 | STREAM thematic network : standards, measurement, testing and research in environmental instrumentation and monitoring |
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| 6864 | Annual N2O measurements and associated data: AC0213, Devon, 2012 |
|---|
| 6865 | Evaluation of a YSI-6000 submersible water quality monitor |
|---|
| 6866 | Evaluation of an ELE/pHOX sub-logger submersible water quality monitor |
|---|
| 6867 | Blue-green algal survey of Lower Clicker Quarry |
|---|
| 6868 | Development of a field test kit for detection of blue-green algal toxins (348/02/A) : interim progress report |
|---|
| 6869 | European collaboration to develop standard sediment toxicity test methods (396/4/T) : interim report |
|---|
| 6870 | The application of toxicity-based criteria for the regulatory control of wastewater discharges: a consultation document |
|---|
| 6871 | Atlantic Salmon Trust Winter Journal 2005/2006 |
|---|
| 6872 | Acid Waters: Llyn Brianne Project- Project Record |
|---|
| 6873 | Development of a field test kit for detection of blue-green algal toxins (348/01/A) : interim progress report |
|---|
| 6874 | Some guidance on the use of digital environmental data |
|---|
| 6875 | A review of the quality and status of the Suffolk and Essex estuaries and coastal waters : volume 1 : final draft |
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