| 6826 | A field guide to the British seaweeds : as required for assistance in the classification of water bodies under the Water Framework Directive |
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| 6827 | Radiation Experiments on Aquatic Organisms |
|---|
| 6828 | Impact Of Conifer Harvesting And Replanting On Upland Water Quality |
|---|
| 6829 | Porth, Gluvian and Menalhyl catchment river water quality classification 1990 |
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| 6830 | River Cober catchment river water quality classification 1991 |
|---|
| 6831 | River Fal catchment river water quality classification 1990 |
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| 6832 | River Fal catchment river water quality classification 1991 |
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| 6833 | River Par and Crinnis catchment river water quality classification 1990 |
|---|
| 6834 | River Par and Crinnis catchment river water quality classification 1991 |
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| 6835 | St Austell River and south Cornwall coastal streams catchment river water quality classification 1990 |
|---|
| 6836 | The identification and investigation of a dinoflagellate bloom in Mounts Bay, Cornwall |
|---|
| 6837 | A draft code of practice for analytical quality control in National Rivers Authority laboratories |
|---|
| 6838 | Control samples for ph determination in low ionic strength waters |
|---|
| 6839 | Proposals to introduce operator monitoring assessment for emissions to air from processes regulated under integrated pollution control : consultation paper |
|---|
| 6840 | Cryptosporidium in drinking water : survey of occurrence. June 1991 |
|---|
| 6841 | River Cober catchment river water quality classification 1990 |
|---|
| 6842 | Developing Quality Assurance for Fish Counter Data - Phase 1: An Assessment of the Salmonid Fish Counter Network in England and Wales |
|---|
| 6843 | Quality assurance for phytoplankton data |
|---|
| 6844 | Quality in Corporate Planning 1993 |
|---|
| 6845 | STREAM thematic network : standards, measurement, testing and research in environmental instrumentation and monitoring |
|---|
| 6846 | Annual N2O measurements and associated data: AC0213, Devon, 2012 |
|---|
| 6847 | Evaluation of a YSI-6000 submersible water quality monitor |
|---|
| 6848 | Evaluation of an ELE/pHOX sub-logger submersible water quality monitor |
|---|
| 6849 | Blue-green algal survey of Lower Clicker Quarry |
|---|
| 6850 | Development of a field test kit for detection of blue-green algal toxins (348/02/A) : interim progress report |
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