Surveillance of radioactive cesium in domestic foods on the Japanese market

Yoshinori Uekusa, Hiromi Nabeshi, Rika Nakamura, Tomoaki Tsutsumi, Akiko Hachisuka, Rieko Matsuda, Reiko Teshima

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


We surveyed the concentration of radioactive cesium in foods purchased at markets in areas where possible contamination has been a concern after the Fukushima accident. In fiscal years 2012 and 2013, we surveyed 1,735 and 1,674 foods, respectively, using a NaI (Tl) scintillation spectrometer for the screening test and γ-ray spectrometer with a germanium semiconductor detector for the final test. Only 3 and 4 samples (0.2% of our total samples) exceeded the regulatory limit (100 Bq/kg) for radioactive cesium in fiscal years 2012 and 2013, respectively. Our surveillance indicates that the pre-shipment monitoring of foods by local governments has been working effectively.

Original languageEnglish
Pages (from-to)49-56
Number of pages8
JournalJournal of the Food Hygienic Society of Japan
Issue number2
Publication statusPublished - 2015 Apr 1
Externally publishedYes


  • Germanium semiconductor detector
  • NaI (Tl)
  • NaI (Tl) scintillation spectrometer
  • Radioactive cesium
  • Screening test

ASJC Scopus subject areas

  • Food Science
  • Public Health, Environmental and Occupational Health


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