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Thorium and uranium contents in human urine: Influence of age and residential area.

J. Environ. Radioact. 71, 61-70 (2004)
Open Access Green as soon as Postprint is submitted to ZB.
Inductively coupled plasma mass spectrometry (ICP-MS) has been used for the determination of (232)Th and (238)U in urine of unexposed Jordanian subjects living in six cities. The range of (232)Th excretion in all subjects was found to be 1.4-640 microBq d(-1) with an average of 34.8 microBq d(-1) (geometric mean 15.8 microBq d(-1)). Results showed no statistically significant correlation with age and residential area. The average value obtained is in agreement with levels considered normal in some recent publications. The average value of (238)U in all samples was found to be 3955 microBq d(-1) (geometric mean 1107 microBq d(-1)), which is higher than reported figures from Germany and India, but in agreement with those figures given in ICRP publication, number 23. The mean values of the different groups were found to be proportional to age up to 60 years. A noticeable drop is observed for subjects greater than 60 years old.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Uranium; Thorium; Urine; Exposure; Jordan; ICP-MS
ISSN (print) / ISBN 0265-931X
e-ISSN 0265-931X
Quellenangaben Volume: 71, Issue: 1, Pages: 61-70 Article Number: , Supplement: ,
Publisher Elsevier
Reviewing status Peer reviewed
Institute(s) Institute of Ecological Chemistry (IOEC)
Institute of Radiation Protection (ISS)