title: [Estimation of dietary intake of radioactive materials by total diet methods].
abstract: Radioactive contamination in foods is a matter of great concern after the Tokyo Electric Power Company's Fukushima Daiichi nuclear power plant disaster caused by the Great East Japan Earthquake. In order to estimate human intake and annual committed effective dose of radioactive materials, market basket and duplicate diet samples from various areas in Japan were analyzed for cesium-134 ((134)Cs), -137 ((137)Cs), and natural radionuclide potassium-40 ((40)K) by γ-ray spectroscopy. Dietary intake of radioactive cesium around Fukushima area was somewhat higher than in other areas. However, maximum committed effective doses obtained by the market basket and duplicate diet samples were 0.0094 and 0.027 mSv/year, respectively, which are much lower than the maximum permissible dose (1 mSv/year) in foods in Japan.
authors.affiliation: National Institute of Health Sciences.
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Uekusa
authors.forename: Hiromi
authors.initials: H
authors.lastname: Nabeshi
authors.forename: Tomoaki
authors.initials: T
authors.lastname: Tsutsumi
authors.forename: Akiko
authors.initials: A
authors.lastname: Hachisuka
authors.forename: Rieko
authors.initials: R
authors.lastname: Matsuda
authors.forename: Reiko
authors.initials: R
authors.lastname: Teshima
mesh_terms: D000293:Adolescent; D000328:Adult; D002588:Cesium Radioisotopes / Q000032:analysis*; D002648:Child; D002675:Child, Preschool; D055866:Earthquakes; D005260:Female; D005504:Food Analysis / Q000379:methods*; D005507:Food Contamination, Radioactive / Q000032:analysis*; D062406:Fukushima Nuclear Accident; D006801:Humans; D007223:Infant; D007564:Japan; D008297:Male; D008452:Maximum Allowable Concentration; D008875:Middle Aged; D011197:Potassium Radioisotopes / Q000032:analysis*; D011247:Pregnancy; D013057:Spectrum Analysis / Q000379:methods; D055815:Young Adult
chemical_list: D002588:Cesium Radioisotopes; D011197:Potassium Radioisotopes