No Fukushima Dai-ichi derived plutonium signal in marine sediments collected 1.5–57 km from the reactors

C. C.S. Wendel, O. C. Lind*, L. K. Fifield, S. G. Tims, B. Salbu, D. H. Oughton

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)

    Abstract

    Based on AMS analysis, it is shown that no Pu signals from the Fukushima accident could be discerned in marine sediments collected 1.5–57 km 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 long-range transport of Pu from the Pacific Proving Grounds.

    Original languageEnglish
    Pages (from-to)180-184
    Number of pages5
    JournalApplied Radiation and Isotopes
    Volume129
    DOIs
    Publication statusPublished - Nov 2017

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