. 1 | —-c 182 L 220 0 Oo 286 O ° 166 © 200 Eniwetok Atoll 0 ‘ook \ oO = , : 48.0 0 100 -€Z- 805 6125 Total gamma activity 1038 ¢/m/cc of wet plankton 18.2 9 0 12.9 %, 022.2 A3. 2 034. 4 | Lr, & io Zé | Figure 6. Total gamma activity of the post-Wahoo plankton samples.