EXPOSURES AND MORTALITY AMONG CHRYSOTILE ASBESTOS WORKERS .1. EXPOSURE ESTIMATES
EXPOSURES AND MORTALITY AMONG CHRYSOTILE ASBESTOS WORKERS .1. EXPOSURE ESTIMATES
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DOI：
10.1002/ajim.4700040303
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发表时间：
1983-01-01
影响因子：
3.5
通讯作者：
SHY, CM
中科院分区：
文献类型：
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作者：
DEMENT, JM;HARRIS, RL;SHY, CM
对1930-1975年期间一家加工温石棉的石棉纺织厂的生产工艺和粉尘控制方法进行了详细的研究。线性统计模型重建历史粉尘暴露水平，考虑到纺织工艺，粉尘控制措施和工作分配，开发。这些统计模型的参数估计使用5952工业卫生抽样测量涵盖1930-1975年期间。对于大多数纺织操作，暴露水平在1940年左右显著降低，当时大多数工程粉尘控制措施已经到位。暴露估计结果表明，对照前暴露水平范围为3-78纤维/cc，典型水平远高于10纤维/cc。在为纺织作业提供粉尘控制措施后，估计的暴露水平范围为3-17根纤维/cc，通常范围为5-10根纤维/cc。这些暴露估计值与该工厂工人死亡率评估相结合，以调查暴露-反应关系。
A detailed study of plant processes and dust control methods between 1930-1975 was conducted in an asbestos textile plant processing chrysotile. Linear statistical models for reconstructing historic dust exposure levels, taking into account textile processes, dust control measures and job assignments, were developed. Parameters of these statistical models were estimated using 5952 industrial hygiene sampling measurements covering the period 1930-1975. For most textile operations, exposure levels were significantly reduced by about 1940, when most engineering dust control measures were in place. Results of the exposure estimates indicated precontrol exposure levels to range from 3-78 fibers/cc with typical levels well above 10 fibers/cc. After textile operations were provided with dust control measures, estimated exposure levels ranged from 3-17 fibers/cc and were usually in the range of 5-10 fibers/cc. These exposure estimates were combined with an assessment of mortality among workers at this plant to investigate exposure-response relationships.