12. 13. L. &. ‘Toonkel, Quarterly 75, Deposition at World Land Sites, Environmental Measurements Laboratory, New York, NY, EML-363 (1979). Radiostrontium in Milk and Tap Water, Environmental Measurement Laboratory, New York, NY, EML-363 (1979). 14. National Interim Protection Primary Agency, Drinking Office of Water Water Regulations, Supply, Environmental Washington, be, EPA~570/9-76~-033 (1977). 15. standards for Protection Against Radiation, Council, Washington, DC, 1966). 16. B. Clegg, Pt. 20 (Federal Radiation “ Lawrence Livermore National Laboratory, Livermore, CA, private communication (1980). 17. "Limits for Intakes of Radionuclides by Workers," in Annals of the ICRP (Pergammon Press, New York, 1979), pub. 30, pt. l. 18. Recommendations Protection. Body of the International Commission on Radiological A Report of Committee 4 on Evaluation of Radiation Doses to Tissues from Internal Contamination Due to Occupational Exposure (Pergammon Press, London, 1968), pub. 10. 19. Recommendations Protection. of the Report of International Committee Commission 4 Contamination Resulting from Recurrent on on Radiological Assessment of Internal or Prolonged Uptakes (Pergammon Press, London, 1971), pub. 10A. 20. Cesium-137 From the Environment to Man: Metabolism and Dose, Council on Radiation Protection and Measurements, Washington, DC, National NCRP~-52 (1977). 21. B. C. City Bennett, and San Strontium~90 Francisco, in United Human Bone, States 1972 Results from New York Atomic Energy Commission Health and Safety Laboratory, New York, NY, HASL-274 (1973). 22. B. C. San Bennett, Francisco, Strontium-90 United in States Human Bone, Department 1976 Results from N.Y. of Energy Health and and Safety Laboratory, New York, NY, HASL-328 (1977). 23. B. C. Bennett and Cc. S. Klusek, Strontium-90 in Human Bone, 1977 Results from New York City and San Francisco, United States Department of Energy Environmental Measurements Laboratory, New York, NY, EML-344 (1978). 24. F. W. Spiers, Radioisotopes in the Human Body: Aspects (Academic Press, New York, 1968). 33 Physical and Biological