Document Detail

The impact of a change to inhalable occupational exposure limits: strontium chromate exposure in the U.S. Air Force.
MedLine Citation:
PMID:  12809535     Owner:  NLM     Status:  MEDLINE    
The American Conference of Governmental Industrial Hygienists has announced its intention to replace all total particulate threshold limit values (TLVs) with size-selective TLVs. Because the U.S. Air Force has adopted the TLVs as its occupational exposure limits, the impact of this change is of interest, specifically for hexavalent chromium. This article reviews historical strontium chromate sampling data in the Air Force and the impact of its reinterpretation in comparison to an inhalable TLV. Based on the measured conversion factor between the 37-mm cassette and the IOM inhalable sampler, inhalable strontium chromate exposures will continue to exceed the TLV during all aircraft priming and most sanding procedures. In addition, inhalable exposures are expected to exceed 1000 times the TLV, greater than the highest currently assigned protection factor for airline respirators, during 25% of priming procedures. Without a change in the value of the current TLV time-weighted average of 0.5 microg/m(3), the Air Force will need to reduce strontium chromate levels, either by incorporating work practices that decrease worker productivity or considering a change to nonchromated primers.
Gary N Carlton
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  AIHA journal : a journal for the science of occupational and environmental health and safety     Volume:  64     ISSN:  1542-8117     ISO Abbreviation:  AIHA J (Fairfax, Va)     Publication Date:    2003 May-Jun
Date Detail:
Created Date:  2003-06-17     Completed Date:  2003-10-09     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  101146781     Medline TA:  AIHA J (Fairfax, Va)     Country:  United States    
Other Details:
Languages:  eng     Pagination:  306-11     Citation Subset:  IM    
72nd Medical Group, Tinker AFB, OK, USA.
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MeSH Terms
Air Pollutants, Occupational / analysis*,  standards
Chromates / analysis*
Environmental Monitoring / instrumentation
Government Agencies
Inhalation Exposure*
Maximum Allowable Concentration
Military Personnel*
Strontium / analysis*
Threshold Limit Values
United States
Reg. No./Substance:
0/Air Pollutants, Occupational; 0/Chromates; 7440-24-6/Strontium; 7789-06-2/strontium chromate

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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