eo = SQN, , oN ) : Ci INTERNATIONAL CONFERENCE 410593 ajconr.8/P/1045 ¥ ONTHEPEACEFULUSES + ~ induy r955¢TE | h2 onTomaL: ENGLISH 7° OF ATOMIC ENERGY ~ Confidential until official release during Conference RG 326 US ATOMIC ENERGY - sou Reh pcation Collection RADIATION INJURY DUE TO RADIOACTIVE FALLOUT ot F-A3 by Folder Dr. Masao Tsuzukit On 1 March 1954, 25 fishermen were injured by the radioactive fallout. Sickness. All fishermen were suffering from the acute radiation Since the accident, we have much learned about the radio- active fallout injury upon the human body. Twenty-three were on board a small fishing boat and fishing tunas and sharps. Early in the morning, fleecy Cloud was spread over and white ashes were falling down. The ashes covered the sea surfavle and also the deck of the boat. The deck looked white as if it had been covered by frost. The white ashes were continuously falling in 5 hours. Some crew complained of nausea and lost of their appetite. They gave up their fishing and sailed on their way back, owing to a lack of fuel oil. In 3 days some of the fishermen noticed that their faces, necks and hands became reddish and swollen. Some had itching feeling or small vesicles. darker colour. In several more days, their faces changed into They were ordered to wash their bodies in bath, it was, of course, faulty, because there was not enough supply of water in such a small boat. their mother port - Yaizu, Tokyo). Their return voyage took 2 weeks to Shizuoka Prefecture (about 100 miles from Radioactivity of the fishing boat was surveyed for the first time on 17 March. An enormous amount of radioactivity was found on the boat. For instance, the radioactivity on the boat deck was 110 milliroentzen per hour (including beta and gamma rays) and that of the crews! quarter 80 milliroentgen per hour. These activities are really 40 to 60 times of the international maximal permissible dose in a living place. | , % tO, <2 Ooh => » Professor emeritus, Tokyo University and Director, Cross Central Hospital, Tokyo. Japanese Red