Feasibility of a Portable X-Ray Fluorescence Device for Bone Lead Measurements of Condor Bones

Details

• Personal Author:
  Nie LH ; Parish CN ; Specht AJ ; Wallens EK ; Watson RT ; Weisskopf MG
• Description:
  Lead based ammunition is a primary source of lead exposure, especially for scavenging wildlife. Lead poisoning remains the leading cause of diagnosed death for the critically endangered California condors, which are annually monitored via blood tests for lead exposure. The results of these tests are helpful in determining recent exposure in condors and in defining the potential for exposure to other species including humans. Since condors are victim to acute and chronic lead exposure, being able to measure both would lend valuable information on the rates of exposure and accumulation through time. A commercial portable X-ray fluorescence (XRF) device has been optimized to measure bone lead in vivo in humans, but this device could also be valuable for field measurements of bone lead in avian species. In this study, we performed measurements of bone Pb in excised, bare condor bones using inductively coupled plasma mass spectrometry (ICP-MS), a cadmium 109 (Cd-109) K-shell X-ray fluorescence (KXRF) system, and a portable XRF system. Both KXRF and portable XRF bone Pb measurement techniques demonstrated good correlations with ICP-MS results (r=0.93 and r=0.92 respectively), even with increasing skin thickness (r=0.86 between ICP-MS and portable XRF at 1.54mm of soft tissue). In conclusion, our results suggest that a portable XRF could be a useful option for measurement of bone Pb in avian species in the field. [Description provided by NIOSH]
• Subjects:
  Animals Blood Environmental Exposure Environmental Monitoring Environmental Pollution Hematologic Tests Lead Lead Poisoning Metals Metals, Heavy Occupational Health Poisoning Safety

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• Keywords:
  Author Keywords: Metals Avian Bioaccumulation Biological Monitoring Biomonitoring Blood Lead Levels Blood Tests Bone Disorders Bone Structure Environmental Contamination Environmental Exposure Environmental Monitoring Equipment Reliability Equipment Testing Exposure Levels Heavy Metals Humans In Vivo Study Lead Absorption Lead Poisoning Mass Spectrometry Measurement Equipment Metal Compounds Mobile Equipment Performance Tests X-ray Fluorescence Analysis

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• ISSN:
  0048-9697
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Idaho ; Indiana ; Massachusetts ; OSHA Region 1 ; OSHA Region 10 ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  398-403
• Volume:
  615
• NIOSHTIC Number:
  nn:20052566
• Citation:
  Sci Total Environ 2018 Feb; 615:398-403
• Contact Point Address:
  Aaron J. Specht, Harvard T.H. Chan School of Public Health, Boston, MA 02215, USA
• Email:
  aspecht@hsph.harvard.edu
• CAS Registry Number:
  Lead (CAS RN 7439-92-1)
• Federal Fiscal Year:
  2018
• Performing Organization:
  Purdue University, West Lafayette, Indiana
• Peer Reviewed:
  True
• Start Date:
  20120701
• Source Full Name:
  Science of the Total Environment
• End Date:
  20150630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:a590826bc2db5756df1a92434b10ffc272e43ee98522bf8332ddcf4894013c3570b92a6f86e05971a4e05f1d99b1ea075e451c17e73b9e1e08e92b83c4dead2e
• Download URL:
  https://stacks.cdc.gov/view/cdc/212077/cdc_212077_DS1.pdf
• File Type:
  [PDF - 620.99 KB ]