Alexis L Maule1, Susan P Proctor, Benjamin C Blount, David M Chambers, Michael D McClean. 1. Department of Environmental Health (Ms Maule, Dr Proctor, Dr McClean), Boston University School of Public Health; Division of Military Performance (Ms Maule, Dr Proctor), United States Army Research Institute of Environmental Medicine, Natick; Veterans Affairs Boston Healthcare System (Dr Proctor), Massachusetts; National Center for Environmental Health (Dr Blount, Dr Chambers), Centers for Disease Control and Prevention, Atlanta, Georgia.
Abstract
OBJECTIVE: This study aimed to evaluate blood volatile organic compound (VOC) levels as biomarkers of occupational jet propulsion fuel 8 (JP-8) exposure while controlling for smoking. METHODS: Among 69 Air Force personnel, post-shift blood samples were analyzed for components of JP-8, including ethylbenzene, toluene, o-xylene, and m/p-xylene, and for the smoking biomarker, 2,5-dimethylfuran. JP-8 exposure was characterized based on self-report and measured work shift levels of total hydrocarbons in personal air. Multivariate regression was used to evaluate the relationship between JP-8 exposure and post-shift blood VOCs while controlling for potential confounding from smoking. RESULTS: Blood VOC concentrations were higher among US Air Force personnel who reported JP-8 exposure and work shift smoking. Breathing zone total hydrocarbons was a significant predictor of VOC blood levels, after controlling for smoking. CONCLUSIONS: These findings support the use of blood VOCs as a biomarker of occupational JP-8 exposure.
OBJECTIVE: This study aimed to evaluate blood volatile organic compound (VOC) levels as biomarkers of occupational jet propulsion fuel 8 (JP-8) exposure while controlling for smoking. METHODS: Among 69 Air Force personnel, post-shift blood samples were analyzed for components of JP-8, including ethylbenzene, toluene, o-xylene, and m/p-xylene, and for the smoking biomarker, 2,5-dimethylfuran. JP-8 exposure was characterized based on self-report and measured work shift levels of total hydrocarbons in personal air. Multivariate regression was used to evaluate the relationship between JP-8 exposure and post-shift blood VOCs while controlling for potential confounding from smoking. RESULTS: Blood VOC concentrations were higher among US Air Force personnel who reported JP-8 exposure and work shift smoking. Breathing zone total hydrocarbons was a significant predictor of VOC blood levels, after controlling for smoking. CONCLUSIONS: These findings support the use of blood VOCs as a biomarker of occupational JP-8 exposure.
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