affected by the behavior of radioactive material in the atmosphere which is affected by atmospheric phenomena. The high radioactivity of the Equatorial Counter Gurrent is due to the fact that the location of the Equatorial Counter Current coincides with that of the climatic equator, thus the amount of precipitation is large in this areca during the period of nuclear tests. Sampling Date 27 Auge 62 28 aug 62 2) Aug62 30 Aug. 62 of Surface 17 Aug. 62| 18 Aug. 62/ 19 aug. 62{ 20 Aug. 62/ 21 Aug 62! 22 aug. 62) 23 Aug. 62] §& 10 11 12 13 14 16-38.8'N 113-26.0'N 10-22.0'N 8~36.0'N 7-09.7'N 6-10.8'N 4~32.0!N 16 17 18 20 21. 23 2h 1-08.8'N O-15.5'N 1~55.0'S O-00.0'! 1-01.5'N ~1-55.0'N 1-28.5'N 15 25 26 2h Aug. 62) 27 | 28 25 sug. 62! ‘ Location 29 30 26 Aug. 62 | 31 ' 33 1,0 AL 42 43 hd Activity, cpm/fs¢ dpm/¢a1 _. 160-38.8'w} 0.340.3 O.24b0.4 162-28 .0'W |-O,.240.3 |-O 340.4 163-53 .0'W 2,540.3 3.240.4 164-08.5'W] 2.040.3: 2,540.3 164-08.5'W} 2,060.3} 2.660.4 164-57.3'W O.3+0.23 O.4t0.4 165-24.0'W}{ 1.0t0.3/ 1.2t0.4 3-47 .0O'N 165-30.5'W 165-09.0'W 165-04.5'W/] 165-00.0'W 162-35.0'W) 161-23.0'W} 160-25.0'W 160-26.0'W 0,06.5'N 158~57.0'W) O.340.3) O.4tO.4 0.940.3) 1.2t0.4 0.8+0.3| L.2t0.4 0.6£0.3 0.8t0.4 O.tt0.3 O.6t0.4 0.340.3 O.4tO.4 0.Qt0.3 0.04024 O.StO.3/ 1.1+0.4 1,040.3] 1.4t0.4 O.46.0'S 158-10.0'W} 0.50.3 2-00.0'S 157-00.0'W) O./t0.3} O-O1L.5'N 157-10.0'W 0.240.3] 0.70.4 O.5FOWY O.340.4 2-07 «5'N 157-34.0'W O.440.3 0.50.4 1.80.3} 2.5tO.4 1-35.4'N 157-24.0'W O.740.3 4-15.5'N 156-57.0'W 0,940.3} 5-43 .5'N 156-49.0'W 1L.0t0.4 1,340.4 we * {_ 14 Auge 62) 15 Aug. 62; 16 aug 62! Station No. 35 37 39 Sea Water Honolulu - Christmas Is. ~ Honolulu j Sampling Station No, 5 gross A-~Activity r —here- Table 1. | —14— ee

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