6501 | Analysis of bacteriological contamination and accumulation of metals and organics in the mussel (Mytilus edulis) |
6502 | Newham STW and Ladock Valley STW impact assessment survey 1996 : final draft report - December 1996 : COR/96/012 |
6503 | Pesticide residues in fish taken from the Newlyn River (1992) |
6504 | Organo-chlorine pesticide residues in freshwater fish [eels] |
6505 | Pollution travel time tables : River Derwent catchment |
6506 | A Review Of The Impact Of Microbiological Contaminants In Groundwater |
6507 | Meiofaunal assemblages of the Thames Estuary, April 1989-March 1990 : modules I-III : a study of the meiofaunal communities present in sediment samples collected by the National Rivers Authority, Thames Region |
6508 | Spirogyra, |
6509 | Diffuse pollution and the water framework directive |
6510 | Doe Lea restoration study : the work of WRc |
6511 | Proposed Environmental Quality Standards for Styrene in water |
6512 | Cement manufacture, lime manufacture and associated process |
6513 | Manufacture of glass fibres, other non-asbestos mineral fibres, glass frit, enamel frit and associated processes |
6514 | River Deben (Suffolk) pollution prevention project 2001/2 |
6515 | River Bourne system fisheries survey 1989-1990 |
6516 | The effect of the voluntary initiative on water quality |
6517 | The Natural (Baseline) Quality Of Groundwaters In England And Wales - The Chalk Of Berkshire And The Chilterns |
6518 | Desktop study of methods for the monitoring of particulate emissions from positively pressurised baghouses |
6519 | Environmental protection final draft report - compliance assessment for EC Freshwater Fish Directive 1991 |
6520 | Environmental screening for the Merseyside objective 1 programme : environmental screening guidelines |
6521 | The NRA in business : annual review and summary accounts 1993-94 |
6522 | Discharges of waste under the EC titanium dioxide directives : report of the National Rivers Authority |
6523 | Newton Abbot flood plan : public information leaflet |
6524 | NRA flood defence strategy |
6525 | Jaywick sea defence system |