476 | Pesticides in the aquatic environment 1997 full report |
477 | Charging for discharges scheme : guidance to the agricultural industry |
478 | Priority and other specific polluting substances and the Water Framework Directive |
479 | Evaluation of historical data on the nutrient status of Esthwaite Water, Cumbria
|
480 | An Aerial Photograph of Ferry House and The Pearsall Building |
481 | Review of existing practices for fluvial grass management throughout the NRA (213/1/Y) |
482 | Research and development in the Environment Agency : a short guide |
483 | Clear Options towards an operational model for the Lee Valley Reservoirs |
484 | The Cam catchment : recommendations for statutory water quality objectives |
485 | Guidance for estimating the air quality impact of stationary sources - GN 24 |
486 | Introductory guidance on the Agency's contribution to sustainable development (SD1) |
487 | The National Centre for Toxic and Persistent Substances |
488 | Algal blooms in the Lower Tees- Perspectives and prospects
|
489 | Acidification of freshwaters: the threat and its mitigation |
490 | Pearl Mussel Image: First out of the blocks |
491 | FWR - User guide for assessing the impact of combined sewer overflows |
492 | The groundwater regulations (Bilingual) : Rheoliadau dwr daear (Bilingual) |
493 | The Use of Immuno Based Techniques for Chemical Analysis |
494 | Water from the River Dee : a working partnership |
495 | Land drainage byelaws 1981 and the Thames region flood defence byelaws 1991 |
496 | River quality in England and Wales : a report of the 1990 survey |
497 | Snapshots of the environment : understanding coastal water quality |
498 | The evaluation of EDT QSE 334 ammonium ion selective electrode (220/17/T) |
499 | The evaluation of ingold ion selective ammonium electrode (220/23/T) |
500 | Rivers of the Isle of Wight fact file |