Ratio of the concentrations of ealan 20753, 1554 137 Cs and 239+240 60 Pu, 238 Pu, ~-Co between bottom water and sediments at several locations in Bikini atoll lagoon. 1. Water concentrations of 23942405, are average values from: Nevissi and Schell (1974); Noshkin et al. (1974b)3; and Lowman (1973). 238 Pu are from Lowman 2. Water concentrations of 3. Water concentrations of 1376. are from Noshkin (1973). et al. (1974b). 4, Water concentrations of 5. Water concentrations of are from Schell (1974a). and Schell .(1974). 155 Eu, 20 7 “Bi and 60 ~~Co 24) Am are from Nevissi ep Figure 25. SP ametempene one = 118