DRAFT 12 16 Mar 54 RADIATION Naval station, Kwajalein, reports signs of radiation injury to the Rongelap group with a "modest decrease in white blood cells.". During the fe 48 hours two reportedly vomited and others experienced nausea. approximately 125 r. cumulative."” ‘These r idents received 23 Mar 54 MEDICAL RADIATION 26 Mar 54 CONTRACTOR RADIATION —— The RongelapIslanders are the only Marshall Islanders now h owing radiation sickness symptoms, including hair loss, skin and mucous memb bre lesions, and blood count averages about two-thirds of normal.” The University of Washington Laboratory of Radiatio Biology (LRB) participates in the first expedition to Rongelap Atoll to collect biol ical samples for measurements of radiation contamination.” 1 Apr 54 ADMINISTRATION MEDICAL | | Shipman back LASL Director Norris E. babury replies that Graves requests the LASL director to contrive an excuse to to Los Alamos as soon as possible. Shipman is returning in a few days.” 13 Apr 54 MEDICAL PLUTONIUM RADIATION Dr. Thomas L. Shipman of LASL reports that the anal sis of urine of Rongelapese and air weather service personnel exposed to Castle Brdvo fallout shows an initial total body dose of iodine’ of about 50 microcuries accom nied by shorterlived iodine isotopes equivalent to about 5 millicuries of iodine at the time of uptake. The estimated total integrated dose to the thyroid is a ut 130 "rep" of which 50 "rep” is from iodine’. Shipman gives estimated body urdens of other nuclides; he finds plutonium as less than one-half of the m imum accepted permissible amount." 20 Apr 54 CLAIMS Prominent Marshall Islanders petition the UN to end the Pacif test operations if possible, but, if tests are necessa ry, to take all possible precatof to protect the health and welfare of the residents. ADMINISTRATION MEDICAL RADIATION eee 22 Apr 54 According to JTF-7 Commander Gen. Clarkson, although th Joint Chiefs of Staff (CS) directive for Castle "is silent on responsibilities” for the rad ipactive exposure