C c The fallout was like dust or sand with radiation and fell from the dark cloud as it passed over the islands. As the map shows,the fallout radiation was heaviest near Bikini and got less and less as the cloud moved east. ‘The peoplé on Rongelap Island got the most fallout, those 7 Marshallese on Ailingnae and 28 Americans on Rongerik received less chan half the amount of the Rongelap people and the people on Utirik Atoll got only about 1/12 the amount of the Rongelap people. The table shows the people exposed and the amount of radiation they received. SUMMARY OF FALLOUT EFFECTS Estimated Group* Composition Rongelap Gamma Dose (Rads) Fallout Observed Ailingnae 64 Marshallese ° 18 Marshallese Heavy (snow-Like) Moderate Rongerik 28 Americans Moderate . Utirik 157 Marshallese (mist-lLike) (mist-like) None Extent of Skin Burns 175 . 69 “ Many Few 78 Very few 14 None z *Also exposed were 23 Japanese fishermen who received a sublethal dose The people living on these Islands received almost all of their » radiation during the first day with very little after chat. When they = were evacuated from the Islands they had some radiation in their bodies and they also had small amounts of radiation on their bodies, which was washed off at Kwajalein. what is radiation? , | * In some ways radiation is like ordinary light except it cannot be seen)felt or smelled, but unlike light it may penetrate into the body and cause harm. and dust that fell out of the bomb cloud. The radiation came from the sand Some of this radiation