| 5601 | River Fal catchment river water quality classification 1990 |
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| 5602 | Fact sheet for the RBCA tool kit for chemical releases |
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| 5603 | River Fal catchment river water quality classification 1991 |
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| 5604 | River Par and Crinnis catchment river water quality classification 1990 |
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| 5605 | River Par and Crinnis catchment river water quality classification 1991 |
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| 5606 | St Austell River and south Cornwall coastal streams catchment river water quality classification 1990 |
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| 5607 | A draft code of practice for analytical quality control in National Rivers Authority laboratories |
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| 5608 | Control samples for ph determination in low ionic strength waters |
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| 5609 | Proposals to introduce operator monitoring assessment for emissions to air from processes regulated under integrated pollution control : consultation paper |
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| 5610 | Cryptosporidium in drinking water : survey of occurrence. June 1991 |
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| 5611 | River Cober catchment river water quality classification 1990 |
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| 5612 | Developing Quality Assurance for Fish Counter Data - Phase 1: An Assessment of the Salmonid Fish Counter Network in England and Wales |
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| 5613 | Quality assurance for phytoplankton data |
|---|
| 5614 | STREAM thematic network : standards, measurement, testing and research in environmental instrumentation and monitoring |
|---|
| 5615 | Evaluation of a YSI-6000 submersible water quality monitor |
|---|
| 5616 | Evaluation of an ELE/pHOX sub-logger submersible water quality monitor |
|---|
| 5617 | Blue-green algal survey of Lower Clicker Quarry |
|---|
| 5618 | Development of a field test kit for detection of blue-green algal toxins (348/02/A) : interim progress report |
|---|
| 5619 | European collaboration to develop standard sediment toxicity test methods (396/4/T) : interim report |
|---|
| 5620 | The application of toxicity-based criteria for the regulatory control of wastewater discharges: a consultation document |
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| 5621 | Acid Waters: Llyn Brianne Project- Project Record |
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| 5622 | Development of a field test kit for detection of blue-green algal toxins (348/01/A) : interim progress report |
|---|
| 5623 | Some guidance on the use of digital environmental data |
|---|
| 5624 | A review of the quality and status of the Suffolk and Essex estuaries and coastal waters : volume 1 : final draft |
|---|
| 5625 | An evaluation of discharge and consent compliance policy : a blueprint for the future |
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