TABLE 2,1 - bredicted Downwind Contamination Levels for Shots 1,2, and 5 after Detonation (r/hr at times indicated) a Shot 10nmi 5 n mi 2 hr [i15nm 20nmi 30 nmi 25 nmi [3 hr|2 hr|3 arf2 hr|3 nel2 hr|3 hr/2 hr[> hr[2 brid hr 1 (based on 6 MT yield) 10,000} 5000 5000 [4000 3000 3000 1200 2000} 800/1500 oO 800 3000 {2500} 1300 1500] 200] 400 oO} 2¢0 6000 500014000] 4000} 2000 [2000/2000] 2000 O 11000 2 (based on * 3 MT yield) ~ - 7000! 4000 70071100} 5 (based on S.5 NT yie.) 12,000] 7000 sea phase required employment cf sea-going ves:els under the Navel Task Group Command, Zeletei Land Stations At Bikini, the islands of Able, Fox, How, Love, han, coc, . SO : Uncle, William, Yoke, and debra, were used for sempling and obtaining gamma field moasurements, Stations consisted of concrete emplacements with instruments Installed in and ubout them. At Enivetok, the islands of Irene, Bruce, Yvonne, Wilma, Leroy, Alice, Janet, and hancy were used for sampling end for obtuining gumm field measurements, where poscsibie, st-tion emplecements reraining fren IVY rallout sampling were utilized; otherwise inctriments were pleced in a - ne open and suitable tie-down errangerents improvised. Stations were estublished on the following outlying islands: Rongerik, Kusaie, Majuro, Ponape, wake, Guam, Kwajalein, and Johnson, Relevek ny a ~. Lagoon Stations Rectangular-grid arrays of stations were cstablished for lagoons of both test atolls, as shown in Figs. 2.2 and 243. These ccn- sisted of anchored buoys to which rafts were attached (see Fig. 2.4). Zeleced Sea Stutions eee vampling in the open ocean was accomplished by means of free- . : floatinz buoys to which, in some casec, rifts were attached. Flans were made to provide the complete coverage indicated by Fig. 2.1 for one land 24 Eee