SLIDE 54 Body-burden history at Bikini. Three body burden measurements of the Bikini Island population werg conducted from 1974 to 1978 at Bikini Island. During this time, the mean Cs body burden of the adult Bikini population increased by a factor of 20. This dramatic elevation of body burden appears to be solely attributable to increased availability of locally grown food products, specifically coconuts and coconut plant products. An ingesti intake model for stepwise increasing intake was used to £37 Cs estimate total radioactivity ingested at Bikini. A constant continuous intake model was used by us to estimate total “~Sr intake. BIKINI ADULTS Cs-I37 y t t TT t 3.2 34 4118.0 al FT+ 2.8F z 7 8 2.4r 5 August ‘78 , Departure +- \ © 20bMaximum Body Burden 8 |_ Observed = 3x Mean Value . 7 Zz + 88.8 a + 3 \ \ 4 59.2 ° \ 4 nd 3 h2r \ 4 44.4 a 3 iz \ 7] z 4 s ' w 0.8b = L 0 _ 4-74 L—_1._t5-79 4-77 4-78 DATE (yr) 52 [-79 1 4 296 4 0.4 “075 tye c € \ SEN wane 4 74.0 , Count ole Body | 3 @1.6r Standard Deviation cation == N dl Fr +0.3x Mean Value S014 . b % 104.0 8-80 14.8 0.0