Hwang Sung Ho, Yun Moonjong, Kim Doo-Young, Lee Byung Kyu, Lim Dae Sung
Department of Health, Environment and Safety, Yong In University, Yongin-si, Gyeonggi-do, South Korea.
ECO Analysis and Technology Co., Ltd., Cheonan, South Korea.
Sci Rep. 2025 Jul 2;15(1):23295. doi: 10.1038/s41598-025-06762-8.
This study aimed to evaluate the safety of small-scale asbestos dismantling and removal work, especially ceiling tile removal using glove bags (GBs), and to investigate the potential for asbestos dispersion in GBs during ceiling material removal to propose safe work practices and related regulations. Asbestos exposure assessment was conducted at five asbestos-containing ceiling tile dismantling sites nationwide. Air sampling was performed during ceiling tile removal at four points per site: near workers' respiratory tract, at the GB fixed boundary, inside the GB, and within the general work area. Phase contrast microscopy was applied to determine asbestos. The results indicated that airborne asbestos concentrations varied by region, with the highest levels detected inside the GB. Elevated concentrations were also observed near workers' respiratory tract. During ceiling tile removal, asbestos concentrations increased as the number of ceiling tiles removed rose from one to three. Proper sealing of asbestos dust to prevent leakage from the GB is essential, and removing ceiling tiles individually rather than in batches effectively reduces asbestos concentrations.
本研究旨在评估小规模石棉拆除和清除工作的安全性，特别是使用手套袋（GBs）拆除天花板瓷砖的安全性，并调查在拆除天花板材料过程中石棉在手套袋内的扩散可能性，以提出安全工作规范和相关规定。在全国五个含石棉天花板瓷砖拆除现场进行了石棉暴露评估。在每个现场拆除天花板瓷砖时，于四个点进行空气采样：工人呼吸道附近、手套袋固定边界处、手套袋内以及一般工作区域内。应用相差显微镜来测定石棉。结果表明，空气中石棉浓度因地区而异，在手套袋内检测到的浓度最高。在工人呼吸道附近也观察到浓度升高。在拆除天花板瓷砖过程中，随着拆除的天花板瓷砖数量从1块增加到3块，石棉浓度上升。妥善密封石棉粉尘以防止其从手套袋泄漏至关重要，并且逐块而非成批拆除天花板瓷砖可有效降低石棉浓度。
