Environmental Geochemistry and Health

, Volume 11, Issue 2, pp 63–72 | Cite as

Naturally occurring radionuclides in drinking water: An exercise in risk benefit analysis

  • Paul Milvy
  • C. Richard Cothern
Article

Abstract

The scientific background information describing the occurrence, measurement, health effects, treatment technology, risk assessment and economic consequences of the presence of naturally occurring radionuclides in drinking water are described for 60,000 public drinking water supplies. The relevant data for the occurrence of radium, uranium and radon in drinking water supplies are discussed and analysed. Radon is of importance because it is released in the process of taking showers and baths and in washing dishes and clothes. Its progeny is then inhaled, leading to the risk of lung cancer. Radium and uranium can both cause bone cancer. The range of average occurrence of natural radioactivity in drinking water is as follows:226Ra, 0.3 to 0.8 pCi L−1;228Ra, 0.4 to 1.0 pCi L−1; uranium, 0.3 to 2.0 pCi L−1 and222Rn, 500 to 600 pCi L−1. The estimated lifetime risks due to the mean groundwater concentrations of naturally occurring radionuclides are:226Ra and228Ra, 1.0 10−5; uranium, 2.0 × 10−6 and radon, 4.0 × 10−4. The cost to reduce total radium levels to 5.0 pCi L−1 is about $9 million. An equivalent expenditure would be required to reduce radon levels to about 4,000 pCi L−1, or uranium levels to about 100 pCi L−1. The problem of maximizing the total mortality and the reduction per unit dollar outlay per unit dollar cost for the uranium/radon case is examined.

Keywords

Uranium Drinking Water Radionuclide Radon Drinking Water Supply 

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References

  1. Aieta, E.M., Singley, J.E., Trassell, A.R., Thorbjarnarson, K.W. and McGuire, M.J. 1987. Radionuclides in drinking water: an overview.J. Am. Water Works Assoc.,79, 144–152.Google Scholar
  2. Cothern, C.R., Lappenbusch, W.L. and Cotruvo, J.A. 1983. Health effects guidance for uranium in drinking water.Health Phys.,44, (Supp. 1), 377–384.Google Scholar
  3. Correia, I.A., Weise, S.B., Callahan, R.J. and Strauss, H.W. 1987. The Kinetics of Ingested222Radon in Humans Determined from Measurements with133Xe. Cooperative Agreement CR8109427. USEPA Health Effects Research Laboratories, Cincinnati, Ohio and Research Triangle Park, North Carolina.Google Scholar
  4. Crawford-Brown, D.J. 1988. The biokinetics and dosimetry of Rn-222 in the human body following ingestion of groundwater (personal communication, January, 1988).Google Scholar
  5. Cross, F.T., Harley, N.H. and Hoffman, W. 1985. Health effects and risks from Radon in drinking water.Health Phys.,48(5), 649–670.Google Scholar
  6. Dombrowski, F. and Phool, T. 1988.Regulatory Impact Analysis of Proposed Radionuclide Regulations. Wade Miller Associates, Arlington, Virginia.Google Scholar
  7. Drury, J.S., Reynolds, S., Owen, P.T., Ross, R.H. and Ensminger, J.T. 1981. Report by the Health and Environmental Studies Program. EPA 570/9-81-001, US Environmental Protection Agency, Information Center Complex, Oak Ridge National Laboratory, Oak Ridge, Tennessee. Available from NTIS, US Department of Commerce, Springfield, Virginia 22161. The first volume is a summary and is identified by the above number. The other three volumes of the 1,980pp. report list ihe data by location and are identified by ORNL-EIS-192.Google Scholar
  8. Finkel, M.P. 1953. Relative biological effectiveness of radium and other alpha emitters in CF-1 female mice.Proc. Soc. Expl. Biol. Med.,83, 494–498.Google Scholar
  9. Health Physics. 1985. Proceedings of the 1983 National workshop on Radioactivity in Drinking Water.Health Phys.,48(5).Google Scholar
  10. Hess, C.T., 1985. The occurrence of radioactivity in public water supplies in the United States.Health Phys.,48(5), 553–586.Google Scholar
  11. International Commission on Radiological Protection. 1979. ICRP Publication 30.Ann. ICRP, 2(3/3). Pergamon Press, Oxford.Google Scholar
  12. Lappenbusch, W.L. and Cothern, C.R. 1985. Regulatory development of interim and revised regulations for radioactivity in drinking water — past and present issues and problems.Health Phys., 48(5), 535–551.Google Scholar
  13. La Touche, Y.D., Willis, D.L. and Dawydian, O.I., 1987. Absorption and biokinetics of uranium in rats following an oral administration of uranyl nitrate solution.Health Phys.,53(2), 147 and following.Google Scholar
  14. Michel, J. and Cothern, C.R., 1986. predicting the occurrence of228Ra in groundwater.Health Phys.,51(6), 715–721.Google Scholar
  15. USEPA. 1986. Water Pollution control: National Primary Drinking Water Regulations: Radionuclides. FR 189,34836–34862, September 30.Google Scholar
  16. Varani, F.T. 1988. Personal communication, January. EDC Services, Lakewood, Colorado.Google Scholar
  17. Wrenn, M.B., Durbin, P.W., Howard, B., Lipsztein, J.et al. Metabolism of ingested U and Ra.Health Phys.,48(5), 601–633.Google Scholar

Copyright information

© Sciences and Technology Letters 1989

Authors and Affiliations

  • Paul Milvy
    • 1
  • C. Richard Cothern
    • 2
  1. 1.Office of Drinking Water (WH-550)US Environmental Protection AgencyWashington, DCUSA
  2. 2.Office of the Administrator (A-101F)US Environmental Protection AgencyWashington, DCUSA

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