Health Copyright (c) 2013 Utah State University All rights reserved. http://digitalcommons.usu.edu/govdocs_health Recent documents in Health en-us Thu, 06 Jun 2013 08:00:18 PDT 3600 Concentrations of Uranium Isotopes in Uranium Millers' and Miners' Tissues http://digitalcommons.usu.edu/govdocs_health/2 http://digitalcommons.usu.edu/govdocs_health/2 Wed, 15 Jun 2011 12:38:56 PDT The alpha-emitting isotopes of uranium and thorium were determined in the lungs of 14 former uranium miners and in soft tissues and bones of three miners and two millers. These radionuclides were also determined in soft tissues and bones of seven normal controls. The average concentrations in pCi/kg wet weight in 17 former miners' lungs are as follows: U-238, 75; U-234, 80; Th-230, 79. Concentrations of each nuclide ranged from 2 to 325 pCi/kg. The average ratio of U-238/U-234 ws 0.92, ranging from 0.64 to 1.06. The mean ratio of Th-230/U-234 was 1.04, ranging from 0.33 to 3.54. The near equilibrium between Th-230 and U-238,234 indicates that the rate of elimination of uranium and thorium from lungs is the same in former uranium miners. The concentrations of U-234 and U-238 were highest in lung; however, the concentration of Th-230 in bones was either higher than or comparable to its concentration in lung.

The concentration ratios of Th-230/U-234 in bone of uranium miners and millers measured in our laboratory have been compared with results predicted by ICRP-30 metabolic models. These results indicate that the ICRP metabolic models for thorium and uranium were only marginally successful in predicting the ratio of Th-230/U-234 in bones, and that effective release rate of uranium from skeleton may be more rapid than predicted by the ICRP model.

]]> United States Nuclear Regulatory Commission Data on Licensed Pharmacists, Utah, 1979 http://digitalcommons.usu.edu/govdocs_health/1 http://digitalcommons.usu.edu/govdocs_health/1 Wed, 27 Apr 2011 13:09:39 PDT This report is one of a set of State reports published by the National Center for Health Statistics (NCHS) containing data from the 1978-79 National Inventory of Pharmacists. The actual data collection ranged from mid 1977 for the first State to mid 1980 for the final State, with the majority occurring in 1978. This set of reports includes all States and the District of Columbia for which data are available.

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