Characterization Analysis of Airborne Particulates from Australian Underground Coal Mines Using the Mineral Liberation Analyser
Exposure monitoring and health surveillance of coal mine workers has been improved in Australia since coal workers’ pneumoconiosis was reidentified in 2015 in Queensland. Regional variations in the prevalence of mine dust lung disease have been observed, prompting a more detailed look into the size,...
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| Veröffentlicht in: | Minerals (Basel) 2022-07, Vol.12 (7), p.796 |
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| creator | LaBranche, Nikky Teale, Kellie Wightman, Elaine Johnstone, Kelly Cliff, David |
| description | Exposure monitoring and health surveillance of coal mine workers has been improved in Australia since coal workers’ pneumoconiosis was reidentified in 2015 in Queensland. Regional variations in the prevalence of mine dust lung disease have been observed, prompting a more detailed look into the size, shape, and mineralogical classes of the dust that workers are being exposed to. This study collected respirable samples of ambient air from three operating coal mines in Queensland and New South Wales for characterization analysis using the Mineral Liberation Analyser (MLA), a type of scanning electron microscope (SEM) that uses a combination of the backscattered electron (BSE) image and characteristic X-rays for mineral identification. This research identified 25 different minerals present in the coal samples with varying particle size distributions for the overall samples and the individual mineralogies. While Mine 8 was very consistent in mineralogy with a high carbon content, Mine 6 and 7 were found to differ more significantly by location within the mine. |
| doi_str_mv | 10.3390/min12070796 |
| format | Article |
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| source | MDPI - Multidisciplinary Digital Publishing Institute; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection |
| subjects | Airborne particulates Atmospheric particulates Backscattering Carbon content Coal Coal mines Coal mining Dust Laboratories Libraries Lung diseases Mineralogy Minerals Mines Occupational exposure Outdoor air quality Particle size Particle size distribution Particulates Pneumoconiosis Regional variations Scanning electron microscopy Underground mines Workers |
| title | Characterization Analysis of Airborne Particulates from Australian Underground Coal Mines Using the Mineral Liberation Analyser |
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