. . B. BEIR-111 1. Cancer (Table V-4 of Typescript Edition) Lifetime Risk of Cancer Death (deaths/ 106/rad) Single exposure to Continous xposure to 1 rad/yr 10 rad Absolute Relative Absolute Relative L-Q, ~ 77 226 67 182* L-L, ~ 167 501 158 430* Q-L, ~ 10 28 --- --- Model * In printed version these were 169 and 403, respectively. the risk coefficients 2. that were derived for continuous We used 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%. In terms of the spontaneous rateolo:~~ per generation 9ives 0i~”~5 = 0.000047 = 0.0047% increase and -=,.,7 IV. 0.0007 = 0.07% increase. CALCULATIONS OF RISK Table 1 gives the radiation dose values provided in developing A. by Dr. Robison for use estimates of increased health risks in the Bikini population. Risks for 14