Excerpt from IAEA Briefing on Fukushima Nuclear Accident (28 March 2011, 14:30 UTC)

On 27 March, deposition of iodine-131 was detected in 9 prefectures, and deposition of cesium-137 in 4 prefectures. The highest values were observed in the prefecture of Tochigi with 320 becquerel per square metre for iodine-131 and 73 becquerel per square metre for caesium-137. In the other prefectures where deposition of iodine-131 was reported, on 27 March, the range was from 6.4 to 110 becq ...Zum vollständigen Artikel

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