13 a . sob » 4 q a l 4 2 10,000F _ - q P 3 , | d > q \OOOF ’ 4 - > * 5 b Ee 2 F100r < r oO > o 7 » a 1 6 1 a , oa J lOrF 7 ; ] " ‘ . 4 P 4 | ‘ 200 4 sp .., ff i000 DAYS AFTER MAR. |, 1954 Figure 3. Radioactive decay patterns of plankton samplea from Rongelap Lagoon. 1. Plate 19020, Labaredj, 12/18/54 2. Plate 19029, Kabelle, 1/29/55 3. Plate 19025, Rongelap, 1/26/55 4. Plate 6079, Kabelle, 7/24/56 5. Plate 6076, Rongelap, 7/23/56 6. Plate 6077, Rongelap, 7/23/56