Goyer N
Institut de recherche en santé et en sécurité du travail du Québec, Montréal, Canada.
Am Ind Hyg Assoc J. 1990 Jul;51(7):390-4. doi: 10.1080/15298669091369835.
A study was carried out to provide a comprehensive profile of sulfur gas concentrations to which workers are exposed during the manufacture of paper pulp by the kraft process. Methods currently available--including colorimetric tubes, direct-reading monitors, and gas chromatographic methods--were compared. Gas chromatography is the only technique able to reliably measure individual sulfur gases. However, the necessity of using a gas sampling bag renders this technique inappropriate for personal monitoring. A strategy to evaluate occupational exposure was developed, based on fluctuations in workplace concentrations and the time profile of worker activities. In most samples, only three sulfur products were detected: dimethyl sulfide, methyl mercaptan, and hydrogen sulfide. Concentrations varied as a function of time and location and are correlated to process and equipment-operation variables. Using the proposed strategy, it was demonstrated that workers in the pulp and paper industry can be exposed to significant concentrations of sulfur compounds.
开展了一项研究，以全面了解在硫酸盐制浆法制造纸浆过程中工人所接触的硫化物气体浓度。对目前可用的方法——包括比色管、直读式监测仪和气相色谱法——进行了比较。气相色谱法是唯一能够可靠测量单一硫化物气体的技术。然而，使用气体采样袋的必要性使得该技术不适用于个人监测。基于工作场所浓度的波动和工人活动的时间分布，制定了一种评估职业暴露的策略。在大多数样本中，仅检测到三种硫化物：二甲基硫醚、甲硫醇和硫化氢。浓度随时间和地点而变化，并且与工艺和设备操作变量相关。使用所提出的策略表明，纸浆和造纸行业的工人可能会接触到高浓度的硫化合物。
