Document Detail

Metal exposure among abrasive blasting workers at four U.S. Air Force facilities.
MedLine Citation:
PMID:  11036727     Owner:  NLM     Status:  MEDLINE    
Button Aerosol Samplers were used to monitor the personal exposure of workers performing abrasive blasting operations at four U.S. Air Force facilities. Inhalable aerosols containing 25 metals, including cadmium, lead, and chromium, were investigated. The Button Aerosol Sampler was chosen because of its ability to successfully withstand mechanical stress, prevent very large particles from collection, and protect the filter from overloading and shredding by rebound particles. In addition, previous studies have shown that the sampling efficiency of this personal Aerosol Sampler exhibits low sensitivity to the ambient air conditions and that it adequately follows the inhalability convention. Inductively coupled plasma (ICP) was used to analyze the collected samples for all 25 metals. In addition, visual absorption spectrophotometry (VAS) was used to analyze for hexavalent chromium because of the presence of strontium chromate. The collected samples yielded 8-hr time-weighted average (TWA) concentrations that were up to 250, 6, and 5 times higher than the permissible exposure limits (PELs) for cadmium, lead, and hexavalent chromium, respectively. Also, the chromium levels measured by the ICP and VAS exceeded the strontium chromate threshold limit value (TLV) by up to 640 and 950 times, respectively. No correlation was found between the ICP and VAS hexavalent chromium concentrations. The likely reasons of this were the presence of Cr (II) and (III) that cannot be detected by the VAS, and the chemical interference from iron and some other metals in the samples. The Button Aerosol Sampler was shown to be useful for the monitoring of workers' exposure to heavy metals during abrasive blasting operations.
V Aizenberg; E England; S Grinshpun; K Willeke; G Carlton
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Publication Detail:
Type:  Clinical Trial; Journal Article; Multicenter Study; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Applied occupational and environmental hygiene     Volume:  15     ISSN:  1047-322X     ISO Abbreviation:  Appl Occup Environ Hyg     Publication Date:  2000 Oct 
Date Detail:
Created Date:  2000-10-20     Completed Date:  2000-11-07     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  9103256     Medline TA:  Appl Occup Environ Hyg     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  766-72     Citation Subset:  IM    
Department of Environmental Health, University of Cincinnati, Ohio, USA.
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MeSH Terms
Air Pollutants, Occupational / analysis*
Environmental Monitoring / instrumentation,  methods*
Metals, Heavy / analysis*
Military Personnel
Respiratory Protective Devices* / standards
United States
Grant Support
Reg. No./Substance:
0/Aerosols; 0/Air Pollutants, Occupational; 0/Metals, Heavy

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