526 | Clear Options towards an operational model for the Lee Valley Reservoirs |
527 | The Cam catchment : recommendations for statutory water quality objectives |
528 | The River Cam catchment management plan : annual monitoring report |
529 | Guidance for estimating the air quality impact of stationary sources - GN 24 |
530 | Introductory guidance on the Agency's contribution to sustainable development (SD1) |
531 | The National Centre for Toxic and Persistent Substances |
532 | Algal blooms in the Lower Tees- Perspectives and prospects
|
533 | Acidification of freshwaters: the threat and its mitigation |
534 | Pearl Mussel Image: First out of the blocks |
535 | FWR - User guide for assessing the impact of combined sewer overflows |
536 | The National Centre for Environmental Data and Surveillance : general leaflet |
537 | Project management and the scheme of delegation : a summary guide : April 1995 |
538 | The groundwater regulations (Bilingual) : Rheoliadau dwr daear (Bilingual) |
539 | The Use of Immuno Based Techniques for Chemical Analysis |
540 | Snapshots of the environment : integrated river basin management |
541 | Water from the River Dee : a working partnership |
542 | Land drainage byelaws 1981 and the Thames region flood defence byelaws 1991 |
543 | Snapshots of the environment : understanding coastal water quality |
544 | The evaluation of EDT QSE 334 ammonium ion selective electrode (220/17/T) |
545 | The evaluation of ingold ion selective ammonium electrode (220/23/T) |
546 | The Influence of Variations in Flow on General Quality Assessment of Rivers |
547 | Stratification in the Severn Estuary- Physical aspects and biological consequences |
548 | The Mersey estuary : a report on environmental quality |
549 | 'Sea Vigil' water quality monitoring : the East coast 1992-1993 |
550 | Catches of migratory fish in the River Don, Aberdeenshire |