Uranium and thorium in urine of United States residents: Reference range concentrations

Journal Article · Thu Jul 01 00:00:00 EDT 1999 · Environmental Research

DOI:https://doi.org/10.1006/enrs.1998.3951· OSTI ID:6475963

Ting, B G; Paschal, D C; Jarrett, J M; Pirkle, J L; Jackson, R J; Sampson, E J; Miller, D T; Caudill, S P ^[1]

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1. Centers for Disease Control and Prevention, Atlanta, GA (United States)

The authors measured uranium and thorium in urine of 500 US residents to establish reference range concentrations using a magnetic-sector inductively coupled argon plasma mass spectrometer (ICP-MS). They found uranium at detectable concentrations in 96.6% of the urine specimens and thorium in 39.6% of the specimens. The 95th percentile concentration for uranium was 34.5 ng/L (parts per trillion); concentrations ranged up to 4,080 ng/L. Thorium had a 95th percentile concentration of 3.09 ng/L; concentrations ranged up to 7.7 ng/L.

• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• OSTI ID: 6475963
• Journal Information: Environmental Research, Vol. 81:1; ISSN 0013-9351
• Country of Publication: United States
• Language: English

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