Permeation of Metallic Gunshot Residues in a Commercial Gun Cleaning Solvent Through a Disposable Nitrile Glove

Details

• Journal Article:
  Forensic Science, Medicine, and Pathology
• Personal Author:
  Cribbs, Travis D. ; Que Hee, Shane S.
• Description:
  Purpose. Gunshot residue (GSR) accumulates in firearms and must be removed mechanically and with gun cleaning solvent (GCS). There are no peer review journal publications on what gloves might be resistant to GSR being cleaned with a GCS. The aim was to fill the data gap. Methods. A Kimtech Science Blue disposable nitrile glove was challenged in triplicate by dissolved GSR of diameters less than 125 micrometers in a popular GCS with permeates collected in n-decane at 35 degrees C in a ASTM F739-20 glass permeation cell with no collection side recirculation. Samples from the collection and challenger sides and permeated glove pieces were analyzed for metals by solvent evaporation, concentrated acid digestion and then inductively coupled plasma-mass spectrometry. Results. Lead, copper and barium GSR compounds permeated between 240 min and 480 min, also being detected within the permeated glove material. The GSR concentrations in mg/g were lead 86.8 +/- 0.2, copper 96.4 +/- 0.2, and barium 0.622 +/- 0.012. Conclusion. A practical and inexpensive method to resist the toxic elements in GSR in a popular GCS for at least 4 hours was to wear a disposable Kimtech Science Blue nitrile glove of average thickness 143-148 µm. More gloves, GCS and GSR should be tested.
• Subjects:
  Gloves Metals Occupational Health Safety Solvents
• Keywords:
  Author Keywords: Gunshot Residue Sampling And Analysis; Gunshot Cleaning Solvent; Nitrile Glove Permeation; ICP-MS Materials Testing; Gloves; Firearms; Skin Exposure; Solvents; Metals;
• Source:
  Forensic Sci Med Pathol 2025 Sep; :[Epub ahead of print]
• ISSN:
  1547-769X
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  California ; San Francisco Region [OSHA]
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  6 pdf pages
• NIOSHTIC Number:
  nn:20071306
• Contact Point Address:
  Shane Department of Environmental Health Sciences, Fielding School of Public Health, University of California Los Angeles, 650 Charles E Young Jr Drive South, Los Angeles, CA, 90095-1772, USA
• Email:
  squehee@ucla.edu
• CAS Registry Number:
  Lead (CAS RN 7439-92-1) ; Copper (CAS RN 7440-50-8) ; Barium (CAS RN 7440-39-3) ; Decane (CAS RN 124-18-5)
• Federal Fiscal Year:
  2025
• Performing Organization:
  University of California Los Angeles
• Peer Reviewed:
  True
• Start Date:
  20050701
• End Date:
  20270630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:dc597072a558fcfcb31ffbbcd30f027fac58716aa987cac04b238a6dd57851e0ee48732a146a3dbcfed02ec137cb03817b1e231e51d902ed4ffae73b7480902b
• Download URL:
  https://stacks.cdc.gov/view/cdc/258782/cdc_258782_DS1.pdf
• File Type:
  [PDF - 785.30 KB ]