Authors:
M. Yamamoto Kanazawa University Low Level Radioactivity Laboratory 923-12 Tatsunokuchi, Ishikawa Japan

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K. Shiraishi National Institute of Radiological Sciences Division of Radioecology 3609 Isozaki 311-12 Nakaminato, Ibaraki Japan

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K. Komura Kanazawa University Low Level Radioactivity Laboratory 923-12 Tatsunokuchi, Ishikawa Japan

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K. Ueno Kanazawa University Low Level Radioactivity Laboratory 923-12 Tatsunokuchi, Ishikawa Japan

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Abstract  

Diet samples were collected by a duplicate portion study of Japanese adults in two districts, a newly-rising town and an established seaside village, of Ishikawa Prefecture, which faces the Sea of Japan. Uranium concentrations in a total of 80 diet samples were determined by -spectrometry after chemical separation. No marked differences between the two districts were found regarding characteristics of food consumption in thirteen categories and in daily intake of238U per person. The daily intake of238U per person ranged from 1.1 to 40 mBq with a geometric mean value of 9.6±2.1 mBq. The234U/238U activity ratios ranged from 0.7–1.5, with most being from 1.0–1.2. The internal dose estimation system (IDES) was completed with Japanese physical parameters and other parameters of ICRP Publication 30, and then the annaul effective dose equivalent was estimated as 3·10–7 Sv for238U in a Japanese adult.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)