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Updated: Jul 21, 2025

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Measurement of Outgassing Rates of Steels
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在钢铁行业 (1972-2006) 职业接触石棉的情况
Dennis J Paustenbach1, Michael E Stevens2, Brett P Tuttle2
1Paustenbach and Associates, 970 W Broadway, Suite E, Jackson, WY, 83001, USA. dennis@paustenbachandassociates.com.
Journal of exposure science & environmental epidemiology
|July 26, 2023
概括
钢铁制造工厂的空气中石棉度历来很低,随着时间的推移显著下降,大多数样品都低于职业暴露限值. 这项研究分析了数十年的数据,提供了对过去石棉使用和行业潜在暴露的见解.
科学领域:
- 职业健康 职业健康 职业健康
- 工业卫生 工业卫生
- 环境科学 环境科学
背景情况:
- 从历史上看,在钢铁制造中使用石棉仅限于密封,制动器和绝缘等特定应用.
- 由于石棉的特性,随着更安全的替代品的出现,这些应用被逐步淘汰.
研究的目的:
- 分析1972年至2006年间16家美国钢铁工厂的空气中石棉的历史度.
- 为了将石棉暴露水平与职业安全和健康管理局 (OSHA) 允许的暴露限值 (PEL) 的变化相关联.
主要方法:
- 来自美国钢铁公司工业卫生记录的495个个人空气中石棉样本的分析.
- 将样本分为代表性工作日 (n=337) 和任务样本 (n=158) 的分类.
- 数据按设施,部门和工作类别分为四个时间段的分组,由OSHA PEL变化定义.
主要成果:
- 在研究期间,代表性工作日和任务样本的空气中石棉平均度在研究期间持续下降.
- 所有测量的度都低于当代的OSHA PEL,只有2.2%的样本超过了极限,大多数是在1978年之前.
- 平均代表性的工作日度从1.09 f/cc (1972-1975) 下降到0.03 f/cc (1994-2006).
结论:
- 这一全面的数据集,以前没有发表,提供了有价值的见解,在钢铁行业的历史石棉暴露.
- 这些发现表明,空气中的石棉含量在过去三十年中大幅减少.
- 该研究鼓励其他大型公司分享工业卫生数据,以推进职业健康研究和计划.
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