4 . mew ew tend er et ce a a cr A Meee ats wae tee el ie oe ees ow -_ 2 he wnole body dos2 of 25 rem referred to above corresponds numerically to the once in a lifetime accidental or emergency dose for radiation workers which, according to NCRP recommendations may be disregarded in the determination of their radiation exposure status (see N8S Handbook 69 dated June 5, 1959}. However, neither its use nor that of the 300 rem value for thyroid expvosure as set forth in these site criteria guides are intended to imply that these numbers constitute accestable limits for emergency doses to the public under accident conditions. Rather, this 25 rem wnole body value and tne 300 ram tayroid value have Deen £ ase guides as reference Values, wWnich can be usad aration of reactor sit2s with resvect to potential reactor accisents of exceedincly low probasilize cf occurrence, and low risk of sublic exrcosure to Fish, et 21, made the following comments regarding the applicability of tnese criteris to the case o release. slutonium Tnese comments are also applicable to hot particle First, tne wording of sactions 199.11 (a) (1) Clearly liniis the acsslication to the irradiation oat the wnoi2 oody and the tnvroid; no other organ or tissue is manticonse< or implieé. Furthermore, only fission procucts in caneral anc iodine in particular are identifi2d as reference substances. Finally, footnote (2) shites unecuivacally that one guides area not to be considered 25 accestanl= Limits for emercsancy doses to tne public under accidant conéitions. 32 Without aduriasing wheatrir the guicgelina values, ' i) w 'g (u HH uw yo ‘ap rem to the whrie sedyv an2 3234 rem to the thyroid, sasulc