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Table 1 Levels of chemicals in the work environment during the rubber curing process

From: A Case of Tracheal Adenoid Cystic Carcinoma in a Worker Exposed to Rubber Fumes

  OEL (TWA) 1997 * 1998 2000 2001 2002 2003 2004 2005
Total dust 10 mg/m3 NA 0.38 –0.64 0.09–0.91 0.03–0.31 NA NA NA NA
Rubber fumes None NA NA NA NA 0.12–0.31 0.27–0.57 0.05–0.08 0.03–0.30
PAHs 200 μg/m3 NA ND 3.8–11.6 1.4–22.6 3.2–4.4 NA NA NA
SO2 2 ppm ND NA NA NA NA 0.04–0.10 0.04–0.09 0.01–0.08
N-Nitrosamine None NA NA NA NA NA ND ND ND
1,3-Butadiene 10 ppm NA NA NA NA ND ND ND ND
Heat 28°C NA 32 29.3 30.2 NA 23.0 27.1 26.9
  1. NA: Not available.
  2. ND: Non-detectable.
  3. OEL: Occupational exposure limit.
  4. TWA: Time weighted average.
  5. PAHs: Polycyclic aromatic hydrocarbons.
  6. *Data not available for 1995, 1996, and 1999.
  7. Measurement unit is mg/m3.
  8. The Korean OEL is not defined, but the British OEL is 0.60 mg/m3 [16].