ZS xe TH RT rors “SA from, the Island of‘Kabetle which is.more heavily’ contaminated ° qos than the ‘Island of. Rongelap). “However, if crabs’were ‘eliminated a i‘ from the. diet; the. intake might average about 107 Sunshine Unite, Further, elimination or restriction. of. the consumption of pandanus would reduce the strontium- 90 intake to Well “under 100° Sunshine Units. oe Ce mw, There is ‘some doubt‘conéerning the correct“strontium- ” 90 activity in the land crabs, since the data are higher.‘than for previous surveys which, is contrary to all otherdata. | Additional surveys!should élarity this point. In any event. the land crabstested are. from theisland of eberte Ainere, 47.2 x a: Sar ee ~ 2 were no collections of ‘land crabs’‘ade’on‘Hongelap.Island eto during the “last survey). ‘. a The)‘general contaminationon RohgeTap-a Jou - is about one-fifth ‘that of Kabelle. The difference ‘in strontiun-~_ 90 content may‘not be as great as this, ‘put sirice these are > . land crabs at would be expected those on Rongelap Tsiand “to be lower, than on Kabelle Island. ~ ’ 2 15. Estimated Future Body Burien of strontiun-90. Although ~ . +, foe sie Aas ead precise values ‘have not been established’, there, is a“discriminatory factor between Sr/Ca ratio. inthe food supply and that found in the bones. Animal experiments and _Mmitea hunan data suggest values of at least a factor of two ¢or three. x 16. If the Rongelapese are returned to their home island, their diet would be supplemented by imported (relatively uncontaminated) foods, especiallyrice. Also, the cisterns would be cleaned out and refilled with fresh water. 1. Despite the wide vartanices in the data, analysis of the results, fromail,of the surveys” on the Pacific Tetands,"show - 9 - . Da ou ~ xy -O - . -~ + - . ee Pe a oa Diy * ve - “Appendix - + “qn . 7 ea . t - st Mette aa . CONFIDENTIAL 9 . ~ * : . a : Sie “Bennet sot pl Poses C “. fe AECRINES