Bugarski Aleksandar D, Vanderslice Shawn, Hummer Jon A, Barone Teresa, Mischler Steven E, Peters Shad, Cochrane Steve, Winkler Jared
Office of Mine Safety and Health Research, National Institute for Occupational Safety and Health, 626 Cochrans Mill Rd, Pittsburgh, PA 15236, USA.
Blue Mountain Energy (BME), Deserado Mine, Rangely, CO, USA.
Min Metall Explor. 2022 Mar 16;39(3):937-945. doi: 10.1007/s42461-022-00588-y.
The case study was conducted in an underground coal mine to characterize submicron aerosols at a continuous miner (CM) section, assess the concentrations of diesel aerosols at the longwall (LW) section, and assess the exposures of selected occupations to elemental carbon (EC) and total carbon (TC). The results show that aerosols at the CM sections were a mixture of aerosols freshly generated at the outby portion of the CM section and those generated in the main drifts that supply "fresh air" to the section. The relatively low ambient concentrations and personal exposures of selected occupations suggest that currently applied control strategies and technologies are relatively effective in curtailing exposures to diesel aerosols. Further reductions in EC and TC concentrations and personal exposures to those would be possible by more effective curtailment of emissions from high-emitting light duty (LD) vehicles.
该案例研究在一个地下煤矿中进行，以表征连续采煤机（CM）作业区的亚微米气溶胶，评估长壁开采（LW）作业区的柴油气溶胶浓度，并评估特定职业对元素碳（EC）和总碳（TC）的暴露情况。结果表明，CM作业区的气溶胶是CM作业区回风部分新产生的气溶胶与为该作业区提供“新鲜空气”的主巷道中产生的气溶胶的混合物。特定职业的环境浓度和个人暴露相对较低，这表明目前应用的控制策略和技术在减少柴油气溶胶暴露方面相对有效。通过更有效地减少高排放轻型车辆的排放，有可能进一步降低EC和TC浓度以及个人对这些物质的暴露。
