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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].