Skip Navigation LinksHome > December 2002 - Volume 44 - Issue 12 > Benzene Exposure Monitoring of Tunisian Workers
Journal of Occupational & Environmental Medicine:
Original Articles

Benzene Exposure Monitoring of Tunisian Workers

Chakroun, Radhouane MSC; Kaabachi, Néziha MD; Hedhili, Abderrazek MD; Feki, Moncef MD; Nouaigui, Habib MD; Laiba, Mohamed Ben MD; Mebazaa, Abderraouf MD

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Abstract

To monitor benzene exposure and to check reliability of urinary trans,trans-Muconic Acid (t,t-MA) as a bio-marker of benzene exposure in local conditions, a study was conducted on 30 Tunisian exposed workers (20 tanker fillers and 10 filling station attendants). The analyses were carried out on environmental air and urinary t,t-MA before (t,t-MAA) and at the end of work shift (t,t-MAB). 20 nonoccupationally exposed subjects were also investigated. The average value of environmental benzene concentration was 0.17 ppm. The differences between t,t-MAA and t,t-MAB concentrations and between t,t-MAB and t,t-MA measured in controls (t,t-MAC) were both significant (p < 0.001). Benzene air concentrations were well correlated with t,t-MAB: R = 0.76. In the nonexposed group, average t,t-MA concentrations is significantly higher among smokers than nonsmokers (P < 0.02). Analysis of urinary t,t-MA offers a relatively simple and suitable method for benzene exposure monitoring.

©2002The American College of Occupational and Environmental Medicine

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