- 42 ‘Man was performed by the NAS-MRC Advisory Committee on the Biological Effects of Radiation. Their report, published in 7 1972, is referred to as the BEIR Report. 3 A. Occupational Exvosure . The existing occupational exposure standard for uniform whole body irradiation is 5 rem/yr and for the lung, 15 rem/yr. the BEIR Report estimates that exposure of the whole body of an individual to 5 rem/yr would lead to a cancer risk between 4.5x10°° and 2.3x1073/yr. 10 °/yr. > oF Their best estimate is Their estimate of the risk of cancer to the individual from a lung exposure of the 15 rem/yr is 3x107>/yr. 7° Allowing a risk of cancer induction between 1/1000 and 1/10, 000 per particle, Table V presents the maximim permissible lung particle burdens (MPLPB) that result in risks comparable to these uniform radiation standards for occupational exposure. . The MPLPB3 values in Table V represent a very substantial ‘reduct'on in the MPLB. A hot particle of Pu-239 at the lower limit activity contains only 0.07 pCi while the MPLB for “occupational exposure 73/ is 1.6x10 4 Washington, D. C. _74/ 75/ Thus the NAS-NRC, "The Effects on Populations of Exposure to Low Levels of Ionizing Radiation," 74 pci. = Ibid, p. 91. Ibid, p. 91. 76/ Ibid, p. 156. , Nov. 1972. (BEIR Report), NAS-NEC,