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2. Ferguson, A., 1995, National Rivers Authority, Anglian Region, private correspondence.
3. Hampson, D.B., 1995, Department of the Environment, Water Services Division, private correspondence. In press.
4. Hydes, O. D., 1992, Nitrates, Pesticides and Lead 1989/1990, 57 (DrinkingWater Inspectorate, HMSO).
5. Regional atmospheric transport and deposition of pesticides in Maryland;Glotfelty,1990