Tentative Criteria for Assessing Workers Exposure to Toluene by Urinary Toluene Screening

This study assessed screening thresholds for determining workers exposure to toluene (Tol) by urinary Tol (Tol-U) and proposed applicable criteria for on-site settings. Participants' urine samples (n = 21) were collected at the end of the workday during the latter half of a week and the Tol-U c...

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Bibliographic Details
Published in:Industrial Health 2006, Vol.44(2), pp.280-282
Main Authors: ASAKAWA, Fumiyuki, HIRAO, Tomohiro, SUNA, Shigeru, KUREHA, Akinori, JITSUNARI, Fumihiko
Format: Article
Language:English
Subjects:
Biological monitoring
Criteria for assessing
Humans
Japan
Occupational Exposure
Toluene - analysis
Toluene - urine
Toluene exposure
Urinary toluene
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Summary:This study assessed screening thresholds for determining workers exposure to toluene (Tol) by urinary Tol (Tol-U) and proposed applicable criteria for on-site settings. Participants' urine samples (n = 21) were collected at the end of the workday during the latter half of a week and the Tol-U concentration was assayed. Simultaneously, each worker's exposure dose to Tol in the breathing zone during work, Tol-TWA (time-weighted average), was measured. Tentative criteria were proposed. Level I, less than Tol-U 38 μg/l, has the least chance of exceeding Tol-OEL 50 ppm (occupational exposure limit for Tol recommended by the Japan Society for Occupational Health), probability 95%
ISSN:0019-8366
1880-8026
DOI:10.2486/indhealth.44.280