ESTIMATION OF DAILY URANIUM INGESTION BY URBAN RESIDENTS IN JAPAN

Authors
KUWAHARA C KOYAMA K SUGIYAMA H
Citation
C. Kuwahara et al., ESTIMATION OF DAILY URANIUM INGESTION BY URBAN RESIDENTS IN JAPAN, Journal of radioanalytical and nuclear chemistry, 220(2), 1997, pp. 161-165
Citations number
8
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Analytical","Nuclear Sciences & Tecnology
Journal title
Journal of radioanalytical and nuclear chemistry → ACNP
ISSN journal
02365731
Volume
220
Issue
2
Year of publication
1997
Pages
161 - 165
Database
ISI
SICI code
0236-5731(1997)220:2<161:EODUIB>2.0.ZU;2-Z
Abstract
125 types of food were collected mainly from Yokohama City which is on e of the typical urban cities in Japan. The samples, were divided into the 18 food categories in the report of the National Nutrition Survey (NNS),(1) were analysed for uranium by alpha-spectrometry after chemi cal separation. Concentrations of U-238 in individual types of food ra nged from 9.85.10(-5) Bq.kg(-1) in grain vinegar to 5.90 Bq.kg(-1) in boiled and dried hijiki. The median value of U-238 was found to be 4.8 3.10(-3) Bq.kg(-1) on a raw weight basis. The daily intake of U-238 pe r person by ingestion was estimated to be approximately 14 mBq with mo re than 50% of it coming from marine products.