made by the Staff Surgeon and certain rough calculations accomplished on the basis of these assumptions and consultetion with JIF-7 scientifieand technical personnel. 1. In general, these assumptions were: That the 19,000 count per minute quoted referred to counts per cubic meter of air. 2. That the counter efficiency was: (a) 50% (b) 20% On this basis, it was concluded from the calculations that all re- sults were within permissible limits for emergency and continuous consumption for air and water as recommended by the National Committee for Radiation Protection and Measurement (NCRP) and elso by the International Commission on Radiation Protection. ~~ Commander JTF-7 and the Deputy for Scientific Matters were advised to this effect by the Staff Surgeon. No further action was taken at this time. Messages 1802222 and 180258Z from-.CINCPAC were checked. At 0730 hours local time on the morning of 22 July, the Staff Surgeon found on his desk an Operational Immediate message 210812Z from CINCPACFLT with information to Commander JTF~7, originating from ALUSNA TOKYO 210218Z to CNO and information to CINCPACFLT (see Tab B, Appendix I): "My 162206Z. MSB reports some of crew of TAKUYO MARU losingwhite blood count as a result of radicactive fallout X MSB in- formally requested aid in flying minimum of 10 and maximm of 51 of crew from Rabaul to Japan for treatment X MSB further requests aid in decontaminating ships X Wooden deck and canves awnings reported to be cane eesTTY SROL CONFIDENT A© DOE ARCH; / (

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