评估遵守不断变化的暴露标准:在西澳大利亚矿业中呼吸式晶体 (RCS) 暴露
Adelle Liebenberg1, Kiam Padamsey1, Kerry Staples2
1School of Medical and Health Sciences, Edith Cowan University, Joondalup 6028, Australia.
International journal of environmental research and public health
|October 29, 2025
概括
西澳大利亚矿山的可呼吸晶体二氧化 (RCS) 暴露符合当前的标准. 强大的呼吸道保护计划意味着对RCS暴露限值的进一步降低可能不合理.
科学领域:
- 职业健康和安全问题 职业健康和安全问题
- 环境科学 环境科学
- 工业卫生 工业卫生
背景情况:
- 呼吸透气晶 (RCS) 和病之间的职业暴露之间的联系已经得到了很好的证实,这促使全球减少了RCS暴露标准 (ES).
- 西澳大利亚 (WA) 从1986年到2024年收集了大量的RCS数据,提供了一个强大的数据集用于分析.
- 最近对ES的变化需要对其对采矿部门合规性的影响进行评估.
研究的目的:
- 分析1986-2024年华盛顿省矿业部门的RCS暴露数据.
- 评估是否符合目前0.05毫克/立方米 (2019年) 的RCS ES.
- 评估是否需要进一步减少RCS的必要性.
主要方法:
- 分析了由DEMIRS在华盛顿省收集的144,141个RCS暴露测量结果.
- 对符合0.05 mg/m3 ES. 的评估.
- 确定具有最高RCS暴露的职位角色 (SEGS).
- 考虑呼吸道保护设备 (RPE) 计划的影响.
主要成果:
- 华盛顿省矿业部门在所有商品类型中证明符合0.05 mg/m3 RCS ES的标准.
- 实验室技术人员,勘探钻井,各种贸易/公用事业,贸易助理,样品准备和采样者/样品操作人员的RCS暴露率最高.
- 暴露评估没有考虑RPE,尽管在华盛顿州的采矿部门实施了强有力的RPE计划,包括适合性测试.
结论:
- 目前的行业合规性,数十年的证据和有效的RPE计划表明,可能不需要进一步减少RCS ES.
- 监管机构应在未来的暴露评估中考虑呼吸器的保护效果.
- 这些发现支持现有的RCS ES在当前控制措施和行业实践的背景下.
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