j Table VIillustrates the distribution of dose with respect to geographical area for each of the cases. The large fraction from working in the interior or on other islands reflects of course the higher exposure rates present in these areas. All of the results discussed so far are free air gamma plus cosmic ray exposures. The effect of shielding by structures or the body itself on gonadal or bone doses has been ignored. The United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) presently recommends a body shielding factor of 0.8 to convert from free air dose (rads) to gonadal dose ((ren). The free air dose will be additionally enhanced by the presence of beta rays, primarily from Wg.90y in the soil. ore m eter We ‘ estimate the Pgn_90y peta’ free air value will be about four times that Gaumes i Jeuldoas due to 137cga This is based on unpublished HASL gabe assuming 90sx/127Cs soil activity ratiosEL ees consistent with the present soil analyses. We would thus expect free air beta dose rates to average about 150 wrad/hr in the interior of Engehi and about 50 urad/hr nt tellin Steam sea om in the village area. paar Although the skin dose would be about one half and f sO