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作为可呼吸煤炭尘埃组成部分的矿的评估

Amir Eskanlou¹, Barbara J Arnold¹

¹John and Willie Leone Family Department of Energy and Mineral Engineering, College of Earth and Mineral Science, The Pennsylvania State University, University Park, PA 16802, USA.

Journal of hazardous materials

|August 3, 2024

概括

安全的化学添加剂可以减少煤炭矿的基 (•OH) 生产,这是煤炭工人肺炎症的关键因素. 碳甲基纤维素通过准表面部位,有效地抑制了OH生成.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
毒理学毒理学毒理学

背景情况:

煤炭工人肺炎的发病率不断上升,需要对煤炭尘埃毒性的研究.
基基 (•OH) 是与粒子毒性相关的活性氧物种.

研究的目的:

为了研究煤矿石矿的基 (•OH) 生产.
评估化学添加剂在减少OH生成方面的有效性.
了解pH值,溶液成分和表面衰老对OH生产的影响.

主要方法:

电动力学测量,红外和X射线光电谱仪. 红外和X射线光电谱仪.
在初步的原子模拟中进行表面分析.
评估各种溶液中的添加剂,包括模拟的肺液.

主要成果:

•矿产生的OH被,和铁催化.
碳氧甲基纤维素通过与表面硫化物和位相互作用,有效降低了OH生产.
大气老化增加了OH产量,特别是在富含铁和的矿中.

结论:

皮里特表面特性,化学成分和环境因素显著影响OH生成.
化学添加剂,如碳甲基纤维素,显示了减轻煤灰毒性的潜力.
了解这些机制对于预防煤炭工人肺病至关重要.

关键词:

煤炭是一种煤炭.自由基是自由基中的一个.皮里特矿是一种矿.可呼吸的煤炭灰尘可以呼吸.有毒性有毒性

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