This study has demonstrated that the disturbance of asbestoscontaining
gaskets, o-rings, and other types of asbestos-containing
components, while performing overhaul work to a jet engine produces
very few airborne fibers, and that virtually none of these
aerosolized fibers is asbestos. None of the 111 personal samples
and 2 of the 138 indoor area samples contained asbestos. The
two area samples positive for asbestos contained a total of 2 chrysotile
fibers greater than 5 lm in length as determined by NOISH
Method 7402, and 1 chrysotile fiber >5 lm in length as determined
by ISO Method 10312. All other analyses for airborne asbestos fiber
concentrations as measured by TEM were below the analytical limit
of detection for all the personal and area air samples collected.
Because TEM analyses reflect airborne asbestos fiber concentrations,
they are the most pertinent data to answer questions related
to the potential health risks from exposure to asbestos during jet
engine overhaul work.
This study has demonstrated that the disturbance of asbestoscontaining
gaskets, o-rings, and other types of asbestos-containing
components, while performing overhaul work to a jet engine produces
very few airborne fibers, and that virtually none of these
aerosolized fibers is asbestos. None of the 111 personal samples
and 2 of the 138 indoor area samples contained asbestos. The
two area samples positive for asbestos contained a total of 2 chrysotile
fibers greater than 5 lm in length as determined by NOISH
Method 7402, and 1 chrysotile fiber >5 lm in length as determined
by ISO Method 10312. All other analyses for airborne asbestos fiber
concentrations as measured by TEM were below the analytical limit
of detection for all the personal and area air samples collected.
Because TEM analyses reflect airborne asbestos fiber concentrations,
they are the most pertinent data to answer questions related
to the potential health risks from exposure to asbestos during jet
engine overhaul work.
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