Table 11. detail and for data on the chemical Analysis of cistern water sampled on 21] June 1975 on Bikini Island (Bikini Atoll). quality, the original report should be consulted. The data from the cistern water in Bikini Island are given in Table il. Bldg. Ground water data from Bikini and Eneu are listed in Table 12. 5 It is assumed 90... 2.5(1) 1.1€11) 239,240, | 7.9 x 1077(5) 1.8(2) 1.9(2) 13.7 * 1077(4) 24 School 1.7(2) 1:42(7) 29.0.* 1072(2) Mean 2.0 1.47 1.69 x 107 “in the alternate living patterns that "only the cistern water will be used for consumption. Radionuclides (pCi/1l)* 1376, Therefore, the dose “the values in.parentheses are the l-o counting errors expressed as percentage of the listed values. assessment via this pathway was based upon the average values listed in The ground water data are Table 11. presented for comparison in the event ground water were used as potable resulting from consumption of cistern water. — water. . The 10~, 30-, 50-, and-70-yr inte- The estimates based upon con- sumption of Eneu ground water (Table gral doses resulting from the consump- 15) also exceed those based upon con- tion of Bikini cistern water are listed sumption of cistern water; the 30-, in Table 13 and are of the order of a 50-, and 70-yr integral doses range few millirem for whole body and bone from 0.2 to 0.4 rem for bone marrow marrow. and 0.03 to 0.05 rem for whole body. These are the doses used in the subsequent dose summary tables. All doses were based upon an intake of The whole body and liver dose is con- water of 2 l/da. tributed almost entirely by og, Strontium-90 and cesium-137 are MARINE FOOD CHAIN approximately two orders of magnitude higher than 239,240), in contributing to bone marrow dose. Tables 14 and 15 No marine samples were collected during the June 1975 survey. This was compare the doses based upon the con- the result of both limited manpower sumptions of Bikini and Eneu ground and time and the fact that the marine water. pathway contributed much less to the The 30-, 50-, and 70O-yr doses resulting from consumption of Bikini gamma radiation dose than the terres- ground water range from 1 to 2 rem for trial and external gamma pathways at bone marrow and 0.4 to 0.7 rem for Enewetak. > whole body. of view, we expected both atolls to be This is a very signifi- cant increase over the estimates very similar. -~21- anna 500997 From this relative point