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  • 标题:Evaluation of urinary cyclohexanediols and cyclohexanol as biomarkers of occupational exposure to cyclohexane
  • 本地全文:下载
  • 作者:Akito Takeuchi ; Yoshihiro Ogawa ; Yoko Endo
  • 期刊名称:Journal of Occupational Health
  • 印刷版ISSN:1341-9145
  • 电子版ISSN:1348-9585
  • 出版年度:2015
  • 卷号:57
  • 期号:4
  • 页码:365-370
  • DOI:10.1539/joh.14-0291-OA
  • 出版社:Japan Society for Occupational Health
  • 摘要:

    Objectives: The aim of the present study was to comparatively evaluate the usefulness of urinary cyclohexanediols (CHdiols-U) and cyclohexanol (CHol-U) as biomarkers of occupational exposure to cyclohexane (CH). Methods: Sixteen subjects (14 men and 2 women) were exposed to CH during proof-printing work. Personal exposure monitoring was conducted during the whole shift on the last working day of the week. The time-weighted average level of exposure to CH (CH-A) was measured using a diffusive sampler. Two urine samples were collected from each worker at different times during the same week: a baseline urine sample (before the first shift of the working week, after a 5-day holiday with no CH exposure) and an end-of-shift urine sample (after the last shift of the same working week, the same day personal exposure monitoring was conducted). CH-A, CHdiols-U and CHol-U were determined using a gas chromatograph-flame ionization detector. Results: The CH-A concentrations ranged from 4.5 to 60.3 ppm, with a geometric mean (GM) of 18.1 ppm. The GMs and ranges (in parenthesis) of the creatinine (cr)-corrected end-of-shift 1,2-CHdiol-U, 1,4-CHdiol-U and CHol-U concentrations were 12.1 (4.1–36.6), 7.5 (2.4–20.1) and 0.4 (0.2–1.0) mg/g cr, respectively. Both CHdiols-U at the end of the shift were significantly correlated with CH-A (correlation coefficients for 1,2-CHdiol-U and 1,4-CHdiol-U of 0.852 and 0.847, respectively). No correlation was observed between CH-A and CHol-U. Conclusions: CHdiols-U at the end of the last shift of the working week are suitable biomarkers of occupational exposure to CH, but CHol-U is not suitable.(J Occup Health 2015; 57: 365–370)

  • 关键词:Biomarker; Cyclohexane; Cyclohexanediol; Cyclohexanol; Occupational exposure
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