926 | The quality of rivers and estuaries in Northumbria region 1990 |
927 | A guide to sustainable urban drainage : protecting the quality of our environment |
928 | Air dispersion climate from the Castle Cement works at Ribblesdale |
929 | Estuarial migration of Atlantic salmon in the river Dee (North Wales) |
930 | Pesticide residues in fish taken from the Newlyn River (1992) |
931 | Doe Lea restoration study : the work of WRc |
932 | Environmental screening for the Merseyside objective 1 programme : environmental screening guidelines |
933 | The NRA in business : annual review and summary accounts 1993-94 |
934 | Environmental statement for the River Wandle flood alleviation scheme contract one (C1) |
935 | Cyanobacteria (blue-green algae) in the south west region 1989 |
936 | Toxic blue-green algae : a report by the National Rivers Authority |
937 | Catchment abstraction management strategies (CAMS) and the Water Framework Directive (WFD) |
938 | Managing water abstraction : the catchment abstraction management strategy process : April 2001 |
939 | Water quality investigations in the Newlyn river catchment |
940 | The River Alt/Crossens fish stock assessment 2001 |
941 | An assessment of water quality in the River Yarty catchment |
942 | Investigations of discharges into the River Lemon at Newton Abbot |
943 | Report on monitoring of environmental quality in the Severn Estuary |
944 | INP-integrated North Sea programme : workshop 14-15th May 1992, Rijkswaterstaat,The Hague |
945 | Conservation and recreation : the Wye challenge : volume 2 : technical appendices |
946 | The Ely Ouse catchment management plan : final plan : January 1994 |
947 | Investigating the Applicability of Passive Sampling Devices to Pesticide Monitoring |
948 | Water quality in Anglian Region : the first five years |
949 | State of the environment report 2001 : West Midlands Region |
950 | The environmental requirements of adult Atlantic salmon (Salmo salar L.) during their upstream migration in the Northwest Miramichi River, New Brunswick. Draft. |