6551 | Continuous water quality monitoring results for the Carnon river |
6552 | The Impact Of Discarded Fishing Line And Tackle On Mute Swans - Phase 1 |
6553 | Environmental monitoring of the Fal Estuary to support the Fal Swan study : final draft report |
6554 | Heavy metal contaminants in fish caught from the Mersey Estuary and inshore Liverpool Bay |
6555 | Monitoring of freshwaters for E.C. dangerous substances list 1 and list 2, 1990 |
6556 | An assessment of the NRA algal growth inhibition test : 1993/4 |
6557 | Carnon River EC dangerous substance directive failure : final draft report |
6558 | Red River (R23A003) EC Dangerous Substance Directive failure 1994 : May 1996. COR/96/004 |
6559 | Zinc in estuaries (Note 390) |
6560 | Wheal Jane : a clear way forward |
6561 | A report on the investigation of the Taff litter problem |
6562 | Abandoned mines and the water environment : report of the National Rivers Authority |
6563 | Pilot environmental audit : NRA Darlington district office : Northumbria and Yorkshire region |
6564 | The impact of land use on salmonids (Report 30) : a study of the River Torridge catchment |
6565 | A review of the industrial uses of continuous monitoring systems : minerals industry processes |
6566 | Anglian region state of the environment report : the IPC perspective |
6567 | Aquatic Litter Information System - Using Digital Technologies |
6568 | Aquatic pesticide pollution incidents in England and Wales - 1994 - 1995 |
6569 | Attenuation of nitrate in the sub-surface environment |
6570 | Catchment management plan : South Essex action plan, June 1996 |
6571 | Endocrine Disruption in the Marine Environment |
6572 | Guidance Manual for Constructed Wetlands |
6573 | Inferences on the pollution status of the Thames estuary from the macrobenthic community structure : National Rivers Authority Thames Region, Biology, Thames Estuary Benthic Programme |
6574 | Lelant Watermill bacterial contamination investigation 1995 |
6575 | New biological methods for assessing episodic pollution |