(i, WILL CONTINUE WASHINGS. ( NO ESTIMATE OF 3BTA DOSE. COUNTS AT H#55 TO 75 HOUR WAS 7700. 105494 AVERAGE INITIAL WHITE SLOoD REPEAT COUNTS AT H+158 HOURS WAS 5300. HOURS TO GREATEST VARIANCE IN WHITE SLOOD COUNTS FROM RONGELAP 2,300 ASOUT H+75 3700 AT H+130 HOURS TO 6000 AT H+158 HOURS. ANOTHER 60-YEAR-OLD NATIVE WHITE LOND COUNT HeS5 HOURS WAS 12,600, AT H+268 WAS 600, AND AT H+192 WAS 2900. PROGHOSIS OF RONGELAP GROUP DEPE"D UPONFURTHER STUDIES. GREATEST VARIANCE WHITE BLOOD COUNTS WEATHER PERSONNEL RONGERIK 10,000 ABOUT H+32 HOURS TO 5800 H4+lh) HOURS GREAT EFFORTS BEING MADE TO KEEP NATIVES COMFORTASLE ON KWAJ. PART TvO: THEY ARE UTIRIK GROUP WILL 2E SET TONEARSY ISLAND EBEYE WHEN HIGH COMMISSIGER CONTENTED. —————e DIRECTS AND STUDIED INTERMITTENTLY. STUDY 3¥ AHC=DOD RESEARCH TEAM. RONGELAP GROUP RETAINED KWAJ FOR INTENSIVE NO DECISION 4S TO TIMES OF RETURN TO HOME ISLANDS. RECOMMEND WAIT UNTIL AFTER SERIES COMPLETED THEN RECHECK RADIATION LEVELS AGAIN. ~ PART THREE: ESTIMATED ACTIVITY MEGACURIES PER SQUARE MILE AT TIME OF FALLOUT: RONGELAP 3 AT H4+6 HOURS, RONGERIK 2 AT H+8 HOURS, UTIRIK 0.17 AT H+16 HOURS. SOTL AND WATER SAMPLES 3EING COLLECTED. ONE SET WATER MEASUREVETS AT RONGELAP SHOWED CONCENTRATION AT D+3 DAYS FROM 2 TO 28 TIMES ABOVE 5x1073 « TEAM RECEIVING ivr EXCELLENT COOPERATION AT KWAJALEIN. 10/06292 BEST AV Al | 10/11352 LABLE Copy EXD ACK PLS TEX SL REDC T IK . AD 10/121 10/12132 . 8260.‘8.1ATOMIC ENERGY OMMISSION CLASSIFICATION CANCELLED® BY AUTHORITY OF DOE/ OC r7Bt Pore only altt xilag SR /$4 pe? _US DOE ARCHIVES poe Collection_DOS Box 7 Me Craw Tekh 12 *-O Folder_BRaveTweet 4

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