6501 | Greenhouse effect : current knowledge and implications for South West England : summary |
6502 | A Status Report on the Direct Oxygenation of the Tywi Estuary - October 1989 |
6503 | Rapid Assessment of Physical Habitat Sensitivity to Abstraction (RAPHSA) |
6504 | Hydrogen Peroxide Dosing Trials, Lea Marston, 18 and 19 March 1996 |
6505 | An assessment of the causes of non-compliance with river quality standards within the River Tiddy catchment (1989-1991) |
6506 | An investigation of the Madford River pollution incident of 29 July 1989 : November 1989 |
6507 | Coastal baseline survey 1990-93. Part 1 : nutrients |
6508 | Devon area internal report - measurement of dissolved oxygen levels in the Dart estuary - March 1996 |
6509 | Environmental Quality Standards for Dissolved Oxygen |
6510 | Study into the effect of Chertsey STW on the North Arm of the River Bourne |
6511 | The evaluation of a pHOX model 962 hand-held dissolved oxygen meter (220/28/T) |
6512 | The evaluation of a WTW model OXI 196 hand-held dissolved oxygen meter (220/29/T) |
6513 | The evaluation of a YSI model 58 hand-held dissolved oxygen meter (220/24/T) |
6514 | The evaluation of an ABB Kent-Taylor model 7135 hand-held dissolved oxygen meter (220/30/T) |
6515 | Determining The Causes Of 'Apparent Eutrophication' Effects |
6516 | 1992 survey of bathing water quality : final draft report |
6517 | Ecotoxocological impact of ferric sulphate on chironomid cultures and profundal reservoir communities |
6518 | Loe Pool urban waste water treatment directive sensitive area (eutrophic) designation : final draft report |
6519 | Phosphorus in the Thames catchment |
6520 | River nar eutrophication study aquatic macrophyte survey |
6521 | The Management of blue-green algal blooms in South-East Australia : a report on the visit to Australia by MJ Pearson and AJD Ferguson in January/February 1993 |
6522 | Pilot environmental audit : NRA Leigh, Tonbridge, district office : southern region |
6523 | A litter assessment of two major tributaries of the Taff, the Cynon and the Rhondda : surveyed March - April 1990 |
6524 | Flood directory East Sussex Local Authority area |
6525 | River Medway : a user's guide |