Urinary metabolic profiling of volatile organic compounds in acute exposed volunteers after an oil spill in Republic of Korea

The Herbei Spirit oil spill occurred in western Korea. A large number of people who participated in the cleanup tasks of the contaminated area were exposed to crude oil component. We developed a method to monitor volatile organic compound (VOC) metabolites in urine, and evaluate the acute exposure c...

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Bibliographic Details
Published in:Biomedical chromatography 2010-05, Vol.24 (5), p.562-568
Main Authors: Lee, Jeongae, Kim, Min-hwa, Ha, Mina, Chung, Bong Chul
Format: Article
Language:English
Subjects:
acute exposure
Adolescent
Adult
biomarker
biomonitoring
Calibration
Female
Gas Chromatography-Mass Spectrometry - methods
Humans
Male
Occupational Exposure - analysis
oil spill
Petroleum - analysis
Petroleum - metabolism
Republic of Korea
Sensitivity and Specificity
volatile organic compounds
Volatile Organic Compounds - metabolism
Volatile Organic Compounds - urine
Young Adult
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Summary:The Herbei Spirit oil spill occurred in western Korea. A large number of people who participated in the cleanup tasks of the contaminated area were exposed to crude oil component. We developed a method to monitor volatile organic compound (VOC) metabolites in urine, and evaluate the acute exposure caused by the oil spill in exposed volunteer workers (n = 100, 20.7 ± 2.1 years, mean ± SD). Acidified urine samples were extracted by SPE, derivatized with trimethylsilyl, and analyzed using gas chromatography–mass spectrometry. Calibration curves were found to be linear from 3 to 1000 ng/mL (r2 > 0.993). Accuracy was over 82.4%, and precision was less than 24.8%. Using this method, the VOC metabolites, except hippuric acid, were present at higher levels in the urine samples of volunteers after cleanup work. The levels of mandelic acid (MA) and trans,trans‐muconic acid (t,t‐MU) were increased significantly (p < 0.001). The exposure effect was greater in women than in men. The effect of smoking was analyzed in all exposed and non‐exposed groups, with non‐smokers showing increased MA and t,t‐MU levels related to exposure. The present method was reliable to determine VOC metabolites in urine and could be useful for biomonitoring of acute exposure effects of VOCs. Copyright © 2009 John Wiley & Sons, Ltd.
ISSN:0269-3879
1099-0801
DOI:10.1002/bmc.1328