Radiation Protection Dosimetry Advance Access originally published online on February 18, 2008
Radiation Protection Dosimetry 2008 130(3):337-342; doi:10.1093/rpd/ncn054
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Low-level occupational 14C contamination – results from a pilot study
1 Lund University, Department of Physics, Division of Nuclear Physics, PO Box 118, SE-221 00 Lund, Sweden
2 Lund University, Department of Clinical Sciences Malmö, Medical Radiation Physics, Malmö University Hospital, SE-205 05 Malmö, Sweden
* Corresponding author: kristina.stenstrom{at}nuclear.lu.se
Received November 2, 2007, amended January 11, 2008, accepted January 12, 2008
This paper presents a pilot study in which specific activities of 14C in hair and urine from 11 radiation workers handling 14C-containing substances have been measured using accelerator mass spectrometry. Varying degrees of contamination were revealed: up to 63% excess in hair and 400% excess in urine. Although the 14C excess reported in this study would result in low effective doses, it would be of interest to monitor the situation at other workplaces with potentially higher risks of contamination. Simultaneous measurements of 14C in hair and urine with additional random measurements of 14C in faeces and exhaled air could provide a means of improving dose estimates for workers handling different types of 14C-containing substances.