| 151 | River quality in England and Wales : a report of the 1990 survey |
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| 152 | Snapshots of the environment : understanding coastal water quality |
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| 153 | Metallothionein in eels from the Thames Estuary : an indicator of environmental quality |
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| 154 | The Influence of Variations in Flow on General Quality Assessment of Rivers |
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| 155 | An assessment of the NRA algal growth inhibition test : 1993/4 |
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| 156 | The Mersey estuary : a report on environmental quality |
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| 157 | 'Sea Vigil' water quality monitoring : the East coast 1992-1993 |
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| 158 | Stream survey and assessment in the Ashford and Folkestone areas |
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| 159 | Toxic blue-green algae : a report by the National Rivers Authority |
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| 160 | Results of the NRA Welsh regional marine bioaccumulation programme 1991-1993 : SE/EAU/94/8 |
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| 161 | The 1990 river and estuary classification survey of England and Wales |
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| 162 | Water quality in Anglian Region : the first five years |
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| 163 | The evaluation of an orion ammonium ion selective electrode (220/15/T) |
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| 164 | The quality of rivers and estuaries in Northumbria region 1990 |
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| 165 | The Ribble Estuary 1992 surveys : summary of results |
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| 166 | Anthropogenic Impacts on the Hydrology of Rivers and Lochs |
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| 167 | Operational mechanisms for the protection and enhancement of headwaters |
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| 168 | The Mersey Estuary 1992 surveys : summary of results |
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| 169 | Continuous water quality monitoring results for the Upper Tamar |
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| 170 | A Review of Methods for Assessing the Hydromorphology of Lakes |
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| 171 | An assessment of river water quality in the River Kenn |
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| 172 | Distribution of Azolla in the Great Ouse catchment |
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| 173 | Investigation into the cause of high phenols in Budleigh Brook (1998) |
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| 174 | The quality of rivers in England and Wales (1990 to 1995) |
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| 175 | Report on the quality of bathing waters 1990 |
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