Inhalation Exposure to Jet Fuel (JP8) Among U.S. Air Force Personnel
ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA
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As jet fuel is a common occupational exposure among military and civilian populations, this study was conducted to characterize jet fuel JP8 exposure among active duty U.S. Air Force personnel. Personnel n24 were divided a priori into high, moderate, and low exposure groups. Questionnaires and personal air samples breathing zone were collected from each worker over 3 consecutive days 72 worker-days and analyzed for total hydrocarbons THC, benzene, toluene, ethylbenzene, xylenes, and naphthalene. Air samples were collected from inside the fuel tank and analyzed for the same analytes. Linear mixed-effects models were used to evaluate the exposure data. Our results show that the correlation of THC a measure of overall JP8 inhalation exposure with all other analytes was moderate to strong in the a priori high and moderate exposure groups combined. Inhalation exposure to all analytes varied significantly by self-reported JP8 exposure THC levels higher among workers reporting JP8 exposure, a priori exposure group THC levels in high group greater than moderate group greater than low group, and more specific job task groupings THC levels among workers in fuel systems hangar group greater than refueling maintenance group greater than fuel systems office group greater than fuel handling group greater than clinic group, with task groupings explaining the most between-worker variability. Among highly exposed workers, statistically significant job task-related predictors of inhalation exposure to THC indicated that increased time in the hangar, working close to the fuel tank inside greater than, less than 25 ft greater than 25 ft, primary job entrant greater than attendantrunnerfireguard greater than outside hangar, and performing various tasks near the fuel tank, such as searching for a leak, resulted in higher JP8 exposure.
- Anatomy and Physiology
- Medicine and Medical Research