DRAFT 21 local population in the populated islands near the PPG and members of the task force." 25 Jun 57 RADIATION ° A radiological survey of the gamma levels on Rongelap Island shows the average gamma dose rate as 0.26 roentgens per year.'* 29 Jun 57 RELOCATION The Rongelapese are returned to their homeisland." 7 Apr 58 WEAPONTESTING The AEC commissioners decide not to conduct two very high altitude firings of nuclear weapons at Enewetak Proving Ground because the AEC cannot assure absolutely that the Marshallese would receive no eye damage from thelight resulting from such detonations.'”’ 1 May 58 RADIATION As part of the Hardtack tests operation in the Pacific, the task force radiological safety office is prepared to warn, advise, and help inhabitants in taking safety measures in case of significant fallout in an inhabited area. The office’s monitors also have trained Marshallese medical practitioners and health aides in basic emergency measures.’ 6 May - 19 Aug 58 WEAPONTESTING The U.S. conducts nuclear weapon tests in Operation Hardtack ! at Bikini, Enewetak, and Johnston Island.'” . : oar Cobo 31 Oct 58 oe WEAPON TESTING E roe Podts In a moratorium, the United States, Great Britain, and the USSR suspend nuclear weapontesting." Mar 59 CONTRACTOR MEDICAL RADIATION , A BNL team conducts the regular annual medical survey of the Rongelapese and finds no illnesses or diseases directly associated with radiation effects. Preliminary results Supgest a “slight lag" in growth and development of exposed children, blood platelet levels somewhat below the unexposed population but within normal range, and increases, though within permissible levels, in body burdens of cesium", zinc, and strontium”, attributed to living on “the slightly contaminated af et eco afm tot cm CH island of Rongelap.*""