Child lead exposure determined from measurement of x-ray fluorescence of teeth in situ

Conference · Tue Feb 01 04:00:00 EST 1977 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:7306875

Bloch, P ^[1]; Mitchell, G; Shapiro, I M; Garavaglia, G

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1. Univ. of Pennsylvania, Philadelphia

X-ray fluorescence from lead when irradiated by gamma rays from a Co-57 source was utilized to measure the lead concentration in children's teeth in situ. The sensitivity of the method was adequate to detect 15 ppM from a gamma ray exposure to the tooth approximately 1/10 the exposure of a routine dental x-ray examination. The tooth lead levels assayed using x-ray fluorescence correlated well with chemical assay techniques for both extracted permanent and shed primary teeth. Thirty children from the Children's Hospital of Philadelphia suspected of having elevated lead levels had tooth lead levels measured in situ determined using the x-ray fluorescent technique. The tooth lead concentration varied from a low of 16 ppM to a high of 56 ppM.

• OSTI ID: 7306875
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-24:1
• Country of Publication: United States
• Language: English

Related Subjects

550600* -- Medicine
62 RADIOLOGY AND NUCLEAR MEDICINE
ANIMALS
BODY BURDEN
CHEMICAL ANALYSIS
CHILDREN
DIGESTIVE SYSTEM
ELECTROMAGNETIC RADIATION
ELEMENTS
GAMMA RADIATION
IONIZING RADIATIONS
LEAD
MAMMALS
MAN
METALS
NONDESTRUCTIVE ANALYSIS
ORAL CAVITY
PRIMATES
RADIATIONS
TEETH
VERTEBRATES
X-RAY EMISSION ANALYSIS
X-RAY FLUORESCENCE ANALYSIS