This research reports on a pilot industrial hygiene study that was performed at four footwear factories and two equipment factories in Thailand. Workers in these factories were exposed through inhalation and dermal contact to a large number of organic vapors from solvents and cements that were hand applied. In addition, these workers were exposed to highly toxic isocyanates primarily through the dermal route. A total of 286 personal air samples were obtained at the four footwear factories using organic vapor monitors; individual job tasks were monitored using a real-time MIRAN Spectrometer. A total of 64 surface, tool, or hand samples were monitored for isocyanates using surface contamination detectors. Real-time measurements were also obtained for organic vapors in two equipment factories. From 8% to 21% of the workers sampled in each footwear factory were overexposed to mixtures of chemicals from solvents and cements. Up to 100% of the workers performing specific job tasks were overexposed to mixtures of chemicals. From 39% to 69% of the surface samples were positive for unreacted isocyanates. Many of the real-time measurements obtained in the equipment factories exceeded occupational exposure limits. Personal protective equipment and engineering controls were inadequate in all of the factories.

译文

:这项研究报告了在泰国的四个制鞋厂和两个设备厂进行的一项工业卫生试验性研究。这些工厂的工人通过吸入和皮肤接触暴露于大量手工溶剂和水泥产生的有机蒸气中。此外,这些工人主要通过皮肤途径暴露于剧毒的异氰酸酯中。在四个鞋类工厂使用有机蒸气监测仪共采集了286个个人空气样本。使用实时MIRAN光谱仪监控单个作业任务。使用表面污染检测器对总共64个表面,工具或手工样品进行了异氰酸酯监测。在两个设备工厂中,还获得了有机蒸气的实时测量结果。每个鞋类工厂抽样的工人中有8%至21%暴露于溶剂和水泥中的化学混合物。从事特定工作任务的工人中,多达100%暴露于化学混合物中。 39%至69%的表面样品未反应的异氰酸酯呈阳性。设备工厂获得的许多实时测量结果都超过了职业接触限值。在所有工厂中,个人防护设备和工程控制都不充分。

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