AECD-3446 -64- No correction for geometry or backscatter was made. The combined factes 2 for the University of Washington counter was1.54 and for the WashingtonState College counter was 1.56. Both were calculated from ps2. No decay factor wag iat employed for reasons stated above. INTERPRETATIONS Bikini Atoll - Activity, where present in the internal tissues of the cOconet, = is of extremely low order, It is doubtful if, within those coconuts studied, there resides any activity greater than twice that which might be found in mainland truck crops normally consumed without question as to the amountof activity present, 2 * There is, however, significant activity on the dead leaf bases and within the accumulation of debris located in the axils of the leaf bases in those areas where "fallout" of radioactive materials was to be expected, Counts run as high as 8,100 cpm/100 mg. ash. This particular count was made on the dry leaf base of a coconut palm on Romuk Island, The retention of the adsorbed fission products __ through the years of constant leaching by rains is surprising and certainly is worthy of special note. In all cases where significant activity was encountered, dead organic matter served as the carrier. Significant counts madeat the site of collection with the survey meter provided were recorded in the dead leaf material collected at the north tip of Bikint ~*~ Island (Area 2406), and at Enyu Island (Area 2894), and at Romuk Island (Area 1014). | 4 i: 4 a q | | I 4 |! In addition, laboratory counts are herein reported for Bikini Island (Ares 2506). 2 Eniwetok Atoll - Similar studies on coconuts were carried out at Eniwetox Atoll on those islands where significant results were to be expected, but not on * thoseislands whereactual tests were conducted, Japtan was least affected while~ * other islands gave very significant activity (see Table 2). There are several instances of probable internally collected radioactivity in the Eniwetok studies as was the case for Bikini Atoll. studies. There are 20 ue zt instances, however, where internally collected activity is more than twice the Likiep activity, or twice the activity found in truck crops. Significant activity was detected on the dry leaf bases, and debris in the & se a Duala TE MN eS. TT 3 7 . ; +