B. BEIR-111 1. Cancer (Table V-4 of Typescript Edition) Lifetime Risk of Cancer Death (deaths/106/rad) Continous Single exposure to to 1 rad/yr 10 rad Absolute Relative 226 67 182* 167 501 158 430* 10 28 --- --- Model Absolute L-Q, L~-L 77 L-L, L-L Q-L, ~ * Relati,ve In printed version these were 169 and 403, respectively. the risk coefficients 2. xposure We used that were derived for continuous exposure. Birth Defects--pages 166-169 (mean parental age = 30 Years) 1 rem per generation (1 rem parental exposure) per 106 live off- spring 5 to 75 birth defects, this is 0.0005--0.0075%--First generation. Since the spontaneous rate is given as 10.7%, in the U.S. population, 1 rem will increase the rate from 10.7% to 10.7005--10.7075%. 0.0005 = ,0 7 . = 0.0007 = 0.07% increase. 0.000047 = 0.0047% increase and 0i~~~5 In terms of the spontaneous rate 1 rem per generation gives IV. CALCULATIONS OF RISK Table 1 gives the radiation dose values provided by Dr. Robison for use in developing estimates of increased health risks in the Bikini population. A. Risks for 14 Different Living Conditions 1. Cancer Risks Table 3 shows the calculations for estimates of increased cancer risk for 14 different living conditions.