451 | Chironomids as indicators of biological quality : present use and future potential : a report of a workshop held at the Environment Agency, Thames Region |
452 | An audit of performance in the AQC inspection of standard biological macro-invertebrate samples in 2001 : Environment Agency CEH Report Ref: COO 15 8/24 |
453 | Local environment focus : local environmental issues in and around Leicester, Loughborough, Melton Mowbray, Shepshed, Narborough, Syston and Kegworth : Local Environment Agency Plan (LEAP) for the Soar : 3rd annual review : August 2001 |
454 | Alternative Farming Methods A Study of the Effects of an Integrated Arable Mgment System on Levels of Herbicide and Nutrients Reaching 'Controlled Waters' |
455 | Local environment focus : local environmental issues in and around Nottingham, Derby, Newark-on-Trent, Gainsborough, Scunthorpe and Ilkeston. : Local Environment Agency Plan (LEAP) for the Lower Trent and erewash : 2nd annual review July 2002 |
456 | Local environment focus : local environmental issues in Wolverhampton, Dudley, Kidderminster, Wombourne, Kinver, Stourbridge, Halesowen and West Hagley : Local Environment Agency Plan (LEAP) for the West Midlands Stour : 3rd annual review December 2001 |