TABLE 7. Average concentrations of radionuclides in Bikini cistern water. pci/t Date Approximate sampled population Chlorinity, ppm 905, 13766 239+ 240), Bikini Island 6/75 1/77 11/77 11/78 4/79 60 140 26.7 16.3 1.5 0.34 2 1 140 0 0 6.2 20 23 0.2 0.25 0.79 0.44 1.45 4.4 -- 17 0.5 -- 16.8 X 1072 6x 10° 3.9 X 1079 2.4 x 1079 2.2 x 10°79 Eneu Island 1/77 11/77 11/73 4/79 ---- 9.1 --- 0.15 0.16 0.16 23 0.21 0.27 0.45 0.9 x 10°? 16.5 x 1079 1.7 xX 1073 1.1 x 107?