PMID- 16730109
OWN - NLM
STAT- MEDLINE
DCOM- 20061113
LR  - 20060626
IS  - 0273-2300 (Print)
IS  - 0273-2300 (Linking)
VI  - 45
IP  - 2
DP  - 2006 Jul
TI  - Assessment of airborne asbestos exposure during the servicing and handling of 
      automobile asbestos-containing gaskets.
PG  - 214-22
AB  - Five test sessions were conducted to assess asbestos exposure during the removal 
      or installation of asbestos-containing gaskets on vehicles. All testing took 
      place within an operative automotive repair facility involving passenger cars and 
      a pickup truck ranging in vintage from late 1960s through 1970s. A professional 
      mechanic performed all shop work including engine disassembly and reassembly, 
      gasket manipulation and parts cleaning. Bulk sample analysis of removed gaskets 
      through polarized light microscopy (PLM) revealed asbestos fiber concentrations 
      ranging between 0 and 75%. Personal and area air samples were collected and 
      analyzed using National Institute of Occupational Safety Health (NIOSH) methods 
      7400 [phase contrast microscopy (PCM)] and 7402 [transmission electron microscopy 
      (TEM)]. Among all air samples collected, approximately 21% (n = 11) contained 
      chrysotile fibers. The mean PCM and phase contrast microscopy equivalent (PCME) 
      8-h time weighted average (TWA) concentrations for these samples were 0.0031 
      fibers/cubic centimeters (f/cc) and 0.0017 f/cc, respectively. Based on these 
      findings, automobile mechanics who worked with asbestos-containing gaskets may 
      have been exposed to concentrations of airborne asbestos concentrations 
      approximately 100 times lower than the current Occupational Safety and Health 
      Administration (OSHA) Permissible Exposure Limit (PEL) of 0.1 f/cc.
FAU - Blake, Charles L
AU  - Blake CL
AD  - Bureau Veritas-Clayton Group Services, Inc., Kennesaw, GA 30144, USA.
FAU - Dotson, G Scott
AU  - Dotson GS
FAU - Harbison, Raymond D
AU  - Harbison RD
LA  - eng
PT  - Journal Article
DEP - 20060526
PL  - Netherlands
TA  - Regul Toxicol Pharmacol
JT  - Regulatory toxicology and pharmacology : RTP
JID - 8214983
RN  - 0 (Air Pollutants, Occupational)
RN  - 0 (Asbestos, Serpentine)
SB  - IM
MH  - Air Pollutants, Occupational/*analysis
MH  - Asbestos, Serpentine/*analysis
MH  - *Automobiles
MH  - Environmental Monitoring
MH  - Humans
MH  - *Occupational Exposure
MH  - Threshold Limit Values
MH  - United States
MH  - United States Occupational Safety and Health Administration
EDAT- 2006/05/30 09:00
MHDA- 2006/11/14 09:00
CRDT- 2006/05/30 09:00
PHST- 2006/04/03 00:00 [received]
PHST- 2006/05/30 09:00 [pubmed]
PHST- 2006/11/14 09:00 [medline]
PHST- 2006/05/30 09:00 [entrez]
AID - S0273-2300(06)00085-7 [pii]
AID - 10.1016/j.yrtph.2006.04.007 [doi]
PST - ppublish
SO  - Regul Toxicol Pharmacol. 2006 Jul;45(2):214-22. doi: 10.1016/j.yrtph.2006.04.007. 
      Epub 2006 May 26.