476 | Opportunities for change : the Environment Agency's response to the government consultation paper on a revised UK strategy for sustainable development |
477 | An assessment of the impact of Berkhamsted and Maple Lodge STWs on the Grand Union canal based on macroinvertebrate surveys |
478 | An Assessment of Cormorant Depredation on Stillwater Coarse Fish Populations in the Lea and Colne Valleys of the Thames Catchment |
479 | Water framework directive : guiding principles on the technical requirements (summary) : accompanying summary to the Environment Agency consultation document |
480 | An investigation to determine if Great Torrington STW is the cause of elevated copper and zinc concentrations in the River Torridge |
481 | Options for development of an enhanced team culture in the NRA, using the Welsh Regional Technical Department as an example |
482 | Modelling the contribution from non-agricultural sources to nitrate pollution in the Sor Brook (Thames Region) (UC 3134) |
483 | A desk top study into the probable causes of poor water quality at Higher Hollacombe Farm (RO5K013) on the Hollacombe Lake |
484 | Health effects of sea bathing (WMI 9021) - Phase III final report to the Department of the Environment |
485 | Procedure for quality assurance for RIVPACS compatible macro-invertebrate samples analysed to the taxonomic level needed for the BMWP-score system |
486 | Assessment of the Trophic Status of Rivers using Macrophytes - supporting documentation for evaluation of the Mean Trophic Rank |
487 | The Economics of No-Spray Zones - a Study of the Risks and Benefits of Pesticide No-Spray Restrictions |
488 | An audit of performance in the AQC inspection of standard biological macro-invertebrate samples in 2002 : The Environment Agency (C00158/31) |
489 | Analysis of benthic macro-invertebrate samples collected by the NRA during 1989 and 1990 from various habitats in the River Delph |
490 | Biological investigation of the impact of Ivybridge sewage treatment works discharge to the River Erme, May 1991 |
491 | Final report of the controlled cohort investigations into the health effects of bathing in sewage contaminated coastal waters |
492 | An investigation into high concentrations of atrazine in surface waters and the increase in maize production in the Otter valley |
493 | River Habitat Quality the physical character of rivers and streams in the UK and Isle of Man |
494 | Investigation of flow distribution in a fracture zone at the Stripa mine, using the radar method, results and interpretation |
495 | Biosensors for environmental monitoring : a review of capabilities and strategies for the future : consultant's report to the NRA |
496 | Assessment of the feasibility of using image analysis in the oyster embryo-larval development and daphnia magna growth tests |
497 | A review of the quality and status of the Suffolk and Essex estuaries and coastal waters : volume 1 : final draft |
498 | An investigation into the frequency of discharge of three combined sewer overflows in the Afan/Kenfig catchment : TM/EAW/96/06 |
499 | Contaminants entering the sea : a report on contaminant loads entering the seas around England and Wales 1990-1993 |
500 | NRA report of the blue-green algal monitoring 1990 : a report by the toxic blue-green algae task group |