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Worker exposure to vinyl chloride and poly(vinyl chloride).

机译:工人接触氯乙烯和聚氯乙烯。

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摘要

The National Institute for Occupational Safety and Health (NIOSH) in early 1974 began industrial hygiene studies of vinyl chloride exposed workers. Three VC monomer plants, three VC polymerization plants, and seven PVC fabrication plants were surveyed. V polymerization plant workers and workers in one job category in VC monomer plants were exposed to average levels above 1 ppm. The highest average exposure was 22 ppm. NIOSH health hazard evaluation studies since these initial surveys have primarily shown nondetectable levels of vinyl chloride. A NIOSH control technology study in 1977 showed that exposure levels in VC polymerization plants had been drastically reduced but exposure levels above 1 ppm were still found in several cases.
机译:1974年初,美国国家职业安全与健康研究所(NIOSH)开始对氯乙烯接触工人进行工业卫生研究。对三个VC单体工厂,三个VC聚合工厂和七个PVC制造工厂进行了调查。 V聚合工厂的工人和VC单体工厂中属于一种工作类别的工人的平均暴露水平高于1 ppm。最高的平均暴露量为22 ppm。自这些初步调查以来,NIOSH健康危害评估研究主要显示出不可检测的氯乙烯含量。 1977年的NIOSH控制技术研究表明,VC聚合装置中的暴露水平已大大降低,但在某些情况下仍发现1 ppm以上的暴露水平。

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