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Worldwide isotope ratios of the Fukushima release and early-phase external dose reconstruction

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Measurements of radionuclides (RNs) in air made worldwide following the Fukushima accident are quantitatively compared with air and soil measurements made in Japan. Isotopic ratios RN:137Cs of 131I, 132Te, 134,136Cs, are correlated with distance from release. It is shown, for the first time, that both within Japan and globally, ratios RN:137Cs in air were relatively constant for primarily particle associated radionuclides (134,136Cs; 132Te) but that 131I shows much lower local (
Original languageEnglish
Pages (from-to)2520
Number of pages1
JournalScientific Reports
Publication statusPublished - 2013


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