1@ is -2.5. Compensating for the additions from the 1956 fallout would only imperceptibly steepen tne decline, thus increasing the liff2rence between decay and decline slopes”. | Tne consistent agreement in decay rate between the two. plankton samples resulting from paired tows (Gast eolun of Table 1) 4s a phenomenon of special interest. ‘AS examples, the pair of samples from Ailinglinae on Cectober 23, 1995 had. decay slopes of -1.58 and -1.53 while the pair of samples from the same . wit lagoon on the following day had slopes of -1. 7.and “1.Bi the ao ne a ecunts in January 1955 also show nearly equal deckrates for the x paired tows. . omy ve This uniformity in decay rate for paired plankton tows Suggests uniformity in radiochemical compos tion. at any one time anu locality, but different composition in the plankton at differyent times or localities. : a Be Durin; the first 2 years (1954-55) Kabelle Island samples - were 2-3 times as radioactive as those from Rongelap Island. _ The 195€ Recwing series raised the July 3956 values of the Rongelap Island region above those of Kabelle, but by July 2957 Rongelap values declined to a level far below Kabelle, only to exceed (although not significantly) Kabeile again in March 1958. “By August : of 1353 Rongelap was s$iid significantly higher than. Kabelle. The fallout from the Hardtack series is reflected tn the higher levels of activity in August, than in Mareh 1958.