1. Lead in the environment;Department of the Environment and Welsh Office,1981
2. Recommendations, guidelines for drinking water quality;World Health Organisation,1984
3. Lead in drinking water-a survey in Great Britain 1975-76 (Pollution paper no 12);Department of the Environment,1977
4. Royal Commission on Environmental Pollution, ninth report: Lead in the Environment,1983
5. Council of the European Communities, Directive relating to the quality of water intended for human consumption 80-778-EEC.