abe 34. Radionuclide concentrations in marine species and birds at Bikini Oli. pCi/gq wet weight 137¢5 90s¢ 239+240py, Reef fish@ 1.0x107! 1.6x10-3 3.4x1074 Clamsb.¢ 1.7x10*2 1 pxio-2 Pelagic fish@ 1.6x107! Shellfishd.e 4.9x1072 Bird eggs9 Octopus Sea turtle 2.5x1072 6.5x1072 1.0x1072 Birds 1.9x10-4 woe 9.1x10-2' 9.8x10-39 1.4x10-2 __- 241 Am 1.7x1074 5.3x1072 3.5x10-5 9.7x10-4 -- 1.9x1072 _- ___ _ 1.2x10-¢ _ oe __- NOTE: Specific activity is decay corrected to 1987: dash indicates no data available. 4 Data from Noshkin et al. (1988). D Includes both muscle and mantle. ~ € Includes data from Noshkin et al. (1988), Nelson (1977), Schell and Schell et al. €1978), as well as LLNL data. Inctudes lobsters and marine crabs. (+976), © Includes '3’cs data from Held (1968), Lynch (1975), as well as LLNL data; 239+240py data from Schel] et al. (1978). f Includes data from Nelson (1977), Lynch (1975), and Held (1968, 1971), as well as LLNL data. 9 Data from Nelson (1976). RADIONUCLIDES IN CISTERN WATER AND GROUND WATER The results of analyses of ground water and cistern water are given in Tables 35 and 36, respectively. The well locations are shown in Fig. 31. The radionuclide concentrations, especially 20Sr and 239+240py, are higher when the well is first established and surface soil and litter fall into the trench and the ground water. After the slotted casing is put in place and the trench backfilled, the 90Sr concentration drops significantly with time as the ground cl i} Cony c ae) r water equilibrates to normal conditions. 53