抄録
There were occupational health problems concern about exposure of flight line personnel to jet fuel
JP-4 including volatile toxic compounds such as benzene and n-hexane. We measured for 19 flight
line personnel exposures to 48 target volatile organic compounds (VOCs) during JP-4 fueled F-15
aircraft maintenance on a day shift. Active personal air sampler with activated chacoal was used for
sampling VOCs. There were 6 straight-chain alkanes with a chain length of C6 to C11 and 5
aromatic hydrocarbons including benzene, toluene, ethylbenzene and xylenes. The highest exposure
level was observed in the personnel who reported exposure to the aircraft exhaust plume. The
estimated flight line exposure levels (n-hexane; 408ppb, n-heptane; 143ppb, toluene; 48ppb and
benzene; 58ppb) calculated from the day shift exposure levels of this highest sample date did not
exceed the values of exposure limits recommended by the National Institute for Occupational Safety
and Health and Japan Society for Occupational Health. There was no significant correlation between
exposure levels and flight line operations, such as working time, number of refueling and awareness
of exposure.
