Fukushima radionuclides in the NW Pacific, and assessment of doses for Japanese and world population from ingestion of seafood

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Povinec, Pavel P. ; Hirose, Katsumi (2015)
  • Publisher: Nature Publishing Group
  • Journal: Scientific Reports, volume 5 (issn: 2045-2322, eissn: 2045-2322)
  • Related identifiers: pmc: PMC4356974, doi: 10.1038/srep09016
  • Subject: Article

Variations of Fukushima-derived radionuclides (90Sr, 134Cs and 137Cs) in seawater and biota offshore Fukushima and in the NW Pacific Ocean were investigated and radiation doses to the Japanese and world population from ingestion of seafood contaminated by Fukushima radionuclides were estimated and compared with those from other sources of anthropogenic and natural radionuclides. The total effective dose commitment from ingestion of radionuclides in fish, shellfish and seaweed caught in coastal waters off Fukushima was estimated to be 0.6 ± 0.4 mSv/y. The individual effective dose commitment from consumption of radioactive-contaminated fish caught in the open Pacific Ocean was estimated to be 0.07 ± 0.05 mSv/y. These doses are comparable or much lower than doses delivered from the consumption of natural 210Po in fish and in shellfish (0.7 mSv/y). The estimated individual doses have been below the levels when any health damage of the Japanese and world population could be expected.
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