No Fukushima Dai-ichi derived plutonium signal in marine sediments collected 1.5-57km from the reactors
Based on AMS analysis, it is shown that no Pu signals from the Fukushima accident could be discerned in marine sediments collected 1.5-57km away from the Fukushima Da-ichi power plant (FDNPP), which were clearly influenced by accident-derived radiocesium. The 240Pu/239Pu atom ratios (0.21-0.28) were significantly higher than terrestrial global fallout (0.182 ± 0.005), but still in agreement with pre-FDNPP accident baseline data for Pu in near coastal seawaters influenced by global fallout and...[Show more]
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|Source:||Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine|
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