251 | Environmental snapshot for the East of England [version 1] |
252 | Disturbing the season's due: plankton periodicity in Grassmere, 1987 |
253 | The Impact Of Particulate Outputs Associated With Timber Harvesting |
254 | The evaluation of Grant/YSU 3800 water quality monitor |
255 | Recommendations For The Processing And Presentation Of Groundwater Quality Data |
256 | Quality audit of biological samples for the 1991 river quality survey |
257 | Pesticides in the aquatic environment 1997 full report |
258 | The precious resource : a brief guide to managing our water resources |
259 | Quantification of the relationship between effluent quality and biological quality : final report |
260 | Priority and other specific polluting substances and the Water Framework Directive |
261 | 'Sea Vigil' water quality monitoring : the Humber estuary 1994 |
262 | Problems with sea trout and salmon in the Western Highlands |
263 | Clear Options towards an operational model for the Lee Valley Reservoirs |
264 | The Cam catchment : recommendations for statutory water quality objectives |
265 | The National Centre for Toxic and Persistent Substances |
266 | Algal blooms in the Lower Tees- Perspectives and prospects
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267 | Water from the River Dee : a working partnership |
268 | Land drainage byelaws 1981 and the Thames region flood defence byelaws 1991 |
269 | Snapshots of the environment : understanding coastal water quality |
270 | The Influence of Variations in Flow on General Quality Assessment of Rivers |
271 | The Mersey estuary : a report on environmental quality |
272 | 'Sea Vigil' water quality monitoring : the East coast 1992-1993 |
273 | Catches of migratory fish in the River Don, Aberdeenshire |
274 | Stream survey and assessment in the Ashford and Folkestone areas |
275 | Lakes, Ponds and Reservoirs in the Southern Region (NRA) |