-13- The ICRP dose limits for individual members of the public are No maximum "“somatically significant" dose for a population in Table I. Using the linear dose-effect relationship and assuming no is given. threshold, the ICRP indicates that an annual exposure of active red marrow, averaged cver each individual in the population, of 0.5 rem (corresponding to the annual dose limit for members of the public) might at equilibrium lead to an increased incidence of leukemia, at most, of about ten cases per year per million persons exposed. The genetic dose to the population should be kept to the minimum amount consistent with necessity and should certainly not exceed 5 rems in 30 years from all sources other than natural background and medical procedures, No single type of population exposure should take up a O+SProportzonate share of the total of the recommended dose limit. or exposures from uncont roll d sources, dent, ICRP iden | “fries e.g., fellowing an. accf- the term “action levels." / he setting of Action 1 velsfor particular circumstances is considered .t6 be the responsi, ( _- t —_ “ bility of national authorities. So ae sent ops et ener :OY. ey wth ae ant . By “ - ee yen We sr eege t r LT eC eek gh bbe Be 7 wa Me r co ad yt i “ " whe a Th : Fol . : ae ea AP PETTY a AO, ED MO to eee s: nn s tyel ale wee a ge gyn gt Tea, othe * a, Ty, ™ a .7r we dis yh *- ihe os biovn tt! neo ve fate . eo. te ng . ¥ wed * coe! cpa anit rae, ‘ wat” tte ' a an . + . . wey tes 4 » ’ ee NE OP USB Qa Fe ’ te wey cog ’ : cH yO te Tere tebe ee! ast st > pte . * : “oe