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Table 3 Establishing criteria for CS2 exposure concentration by department

From: Carbon disulfide exposure estimate and prevalence of chronic diseases after carbon disulfide poisoning-related occupational diseases

Department

CS2 -exposed Concentration (ppm)

Job Contents

High exposure concentration department

Spinning

 

  Doping

6.53

Threading up a spinning machinery and taking out the cake, As CS2 is released during rayon regeneration, exposure concentration is highest with direct exposure.

  Circuit

6.58

In the spinning room having a tangled or broken thread, As CS2 is released during rayon regeneration, exposure concentration is highest with direct exposure.

  Motor Repair

3.79

Repairing motors of a spinning machinery

Moderate exposure concentration department

 Electrical Equipment Repair

4.33

High amount of spinning room work while repairing electrical equipment due to mechanical corrosion problems.

 Maitenance of Ejector

3.03

It is intermittent for reasons such as machine maintenance, but working within the spinning department

 Collection of Sulfuric acid

3.79

CS2 mixed in the recovered solution.

 Manufacturing of CS2

2.77

Exposure to high concentrations of CS2 for a short time while manufacturing, but protective gear is used.

Post-Process

  Packing

3.6

Restricted to the spinning room

  Carrying

1.96

Working in a spinning room for a long time to transport rayon.

  Refining

2

Exposure to remaining CS2 while processing semi-finished cake

 Maintenance

2.16

Estimated at 50% of that in the electrical equipment repair department

 Manufacturing of Viscose

1.35

 

Low exposure concentration department

 Water Treatment

0.45

Sewage inspection and cleaning in the spinning room

 Manufacturing of Chemicals

0.23

Estimated at 50% of that in the water treatment department, production of caustic soda and liquid chlorine, lower possibility of direct exposure.

 General Affairs

0.12

Estimated at 50% of that in the manufacturing department