FUTURE PLANS REFERENCES Recommendations for future studies on nuclear sites are as follows: 1. Pick two nuclear sites with different plant commmities (one similar to Area 13) to determine (a) if uptake is affected by type of preferred forage, and (b) if actinides produced in nuclear tests are similar metabolically to those produced by the safety tests. Use rumen-fistulated steers to determine food habits. 2. Use two cattle populations--one being similar to the Area 13 cattle, which would be sacrificed on the same time schedule as used for the Area 13 study, the other would be a sufficient number of young animals to allow paired annual sacrifices so length of time for equilibrium could be determined. 3. The goat portion of the study should be repeated. Predator control would be essential. A combination of fences, noisemakers, and other control measures may suffice, The need for other studies will probably become apparent after all data are received and analyzed. Barth, J. 1975. "The Solubility of Plutonium from Rumen Contents of Cattle Grazing on Plutonium-Contaminated Desert Vegetation in In Vitro Bovine Gastrointestinal Fluids." In: The Radioecology of Plutontum and Other Transuranice in Desert Environments. Nevada Applied Ecology Group Report, January, 1975. pp. 137-149. M. G. White and P. B. Dunaway (Eds.). NVO-153. Barth, J. 1976. "Solubility of Plutonium and Americium-241 from Rumen Contents of Cattle Grazing on Plutonium-Contaminated Desert Vegetation in In Vitro Bovine Gastrointestinal Fluids--November, 1974, to May, 1975." Presented at the Plutonium Information Conference (NAEG) at the Hilton Hotel, Las Vegas, Nevada, February 12-13, 1976. (To be published in the Proceedings. ) Brechbill, R. A. 1969. “Special Bovine Sampling Study: Project Roller Coaster Sites." SWRHL-53r. U.S. Department of Health, Education, and Welfare, Southwestern Radiological Health Laboratory, Las Vegas, Nevada. Brown, K. W., D. D. Smith, D. E. Bernhardt, K. R. Giles, and J. B. Helvie. 1976. “Food Habits and Radionuclide Tissue Concentrations of Nevada Desert Bighorn Sheep 1972-1973." EMSL-LV-539-6. U.S. Environmental Protection Agency, Environmental Monitoring and Support Laboratory, Las Vegas, Nevada. 23 pp. Fountain, E. L. 1961. Off-Site Animal Investigation Project. Fourth Annual Report. U.S. Atomic Energy Commission, Nevada Operations Office, Las Vegas, Nevada. Gilbert, R. 0., L. L. Eberhardt, and D. D. Smith. 1976. "An Initial Synthesis of Area 13 239Pu Data and Other Statistical Analyses." published in NVO-171.) (To be Hakonson, T. E., J. W. Nyhan, L. J. Johnson, and K. V. Bostick. 1973. "Ecological Investigation of Radioactive Materials in Waste Discharge Areas at Los Alamos for the Period July 1, 1972 Through March 31, 1973." In: Radionuclide Studies. A-5282-MS. Los Alamos Scientific Laboratory, Los Alamos, New Mexico. pp. 8-34. Krey, P. W., and D. Bogen. Nature 395 (4838) :263-265. 1962. “Plutonium in Man and His Environment." McClellan, R. O., H. W. Casey, J. W. Cable, and L. K. Bustad. 1962. ���Transfer of Heavy Radionuclides to Milk." In: Hanford Biology Research Annual Report for 1961. H. A. Kornberg and E. G. Swezea (Eds.). HW-72500. Hanford Atomic Products Operation, Richland, Washington. 415 pp. 44-49.