8. REFERENCES

Institute for Water Quality Studies, Department of Water and Sanitation, Radioactivity in Water Sources: A Preliminary Survey, Department of Water and Sanitation, Project Report No P554001, April, 1995.

Institute for Water Quality Studies, Department of Water and Sanitation, Overview of Radioactivity in Water Sources: Uranium, Radium and Thorium, Department of Water and Sanitation, Report No N/0000/00/RPQ/0196, April 1996.

Sources and Effects of Ionizing Radiation, United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR), Report to the General Assembly with Scientific Annexes, United Nations, New York, 1993.

Recommendations of the International Commission on Radiological Protection, Annals of the ICRP, 1990, Vol. 21, no. 1-3, ICRP Publication 60, Pergamon Press, Oxford, 1991.

International Basic Safety Standards for Protection against Ionizing Radiation and for the Safety of Radiation Sources, Safety Series No. 115, International Atomic Energy Agency, Vienna, 1996.

Measurement and Application of Uranium Isotopes for Human and Environmental Monitoring, Goldstein, S J, Rodriguez, J M and Lujan, N, Health Phys. 72(1):10-18, 1997.

South African Water Quality Guidelines Department of Water and Sanitation - Domestic Use, Department of Water and Sanitation, Pretoria, 1996.

World Health Organization Guidelines for Drinking Water Quality, Geneva, 1993.

Department of Water and Sanitation, Department of Health, Water Research Commission, Quality of Domestic Water Supplies, Volume 1: Assessment Guide, Water Research Commission number TT 101/98, Pretoria, 1998.

Coetzee, H. in Proceedings of the Symposium on the Application of Geophysics to Engineering and Environmental Problems, Orlando, Florida, 23-26 April 1995, p860-863.