1 | Assessing the Impact of Agricultural Pesticides in the Aquatic Environment: Phase II |
2 | Humber estuary : state of the environment 1998 |
3 | Pesticides in the aquatic environment 1996 |
4 | Stream survey and assessment in the Ashford and Folkestone areas |
5 | Development of an Estuarine Classification Scheme for the Water Framework Directive |
6 | An ecological study of the effects of ferric dosing on the plankton and benthic invertebrates of Grafham Water between May 1990 and November 1991 |
7 | Interim guidelines on the ranges of enteric organism decay rates (T90s) under different marine conditions |
8 | NRA programme for the monitoring of water quality Parts 1 to 3 - November 1994 |