| 426 | River quality schemes |
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| 427 | The Influence of Variations in Flow on General Quality Assessment of Rivers - Summary Document |
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| 428 | Modelling algal blooms - final report |
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| 429 | Sandon dock wastewater treatment works : outfall survey October 1992 |
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| 430 | National baseline survey marine manual |
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| 431 | The evaluation of an hydrolab DS3 submersible water quality monitor |
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| 432 | Loweswater survey, July 1993 |
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| 433 | The effects of water resources management on the rivers Bure, Wensum and Nar in North Norfolk : Final project report to the National Rivers Authority. July 1994 |
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| 434 | St Agnes qualitative dye survey 22 August 1995 |
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| 435 | INP-integrated North Sea programme 1991-1992 : partnership in North Sea research : contributions of research institutes to integrated North Sea programme 1991-1992 |
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| 436 | Helford Estuary Gweek Quay sediment quality data report |
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| 437 | River Plym catchment river water quality classification 1990 |
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| 438 | Regional water quality monitoring and surveillance programme for 1992 : consent compliance assessment of effluent discharges |
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| 439 | Annual classification of river water quality 1992 : numbers of samples exceeding the quality standard |
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| 440 | River Tamar catchment river water quality classification 1991 |
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| 441 | The development of biomanipulation techniques and control of phosphorus release from sediments (475/1/A) : LIFE project : restoration of the Norfolk Broads |
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| 442 | Iron and steel making processes |
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| 443 | Marine section monitoring programme, estuaries and coastal waters : sampling stations and requirements, summary for 1994 |
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| 444 | Investigation into farm pollution at Wheddon Cross (1999) |
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| 445 | Metallothionein in eels from the Thames Estuary : an indicator of environmental quality |
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| 446 | Geochemical process modelling : interim report (0295/2/A) |
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| 447 | Water pollution incidents in England and Wales 1991 : report of the National Rivers Authority |
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| 448 | Validation of Diatoms as Proxys for Phytobenthos When Assessing Ecological Status in Lakes |
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| 449 | 1993 general quality assessment (GQA) Cornwall area |
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| 450 | River Exe catchment river water quality classification 1991 |
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