Collecting representative dust samples: A comparison of various sampling methods in underground coal mines

Harris, Marcia L.; Alexander, D. W.; Harteis, Samuel P.; Sapko, Michael J.

doi:10.1016/j.jlp.2014.09.001

Cited by 5 publications

(2 citation statements)

References 2 publications

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“…Previous studies on PM in underground mines have focused on mechanical dust which can cause high mass concentrations near the extraction and processing areas (Ghose 2007;Csavina et al 2011;Harris et al 2015). The effects of diesel engine emissions on the mine air quality, fine particle concentrations, and occupational exposures have also been widely investigated (Scheepers et al 2003;Noll et al 2007;Vermeulen et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Particulate matter characteristics, dynamics, and sources in an underground mine

Saarikoski

Teinilä

Timonen

et al. 2017

Aerosol Science and Technology

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Particulate matter (PM) from mining operations, engines, and ore processing may have adverse effects on health and well-being of workers and population living nearby. In this study, the characteristics of PM in an underground chrome mine were investigated in Kemi, Northern Finland. The concentrations and chemical composition of PM in size ranges from 2.5 nm to 10 mm were explored in order to identify sources, formation mechanisms, and post-emission processes of particles in the mine air. This was done by using several online instruments with high timeresolution and offline particulate sampling followed by elemental and ionic analyses. A majority of sub-micrometer particles (<1 mm in diameter, PM 1 ) originated from diesel engine emissions that were responsible for a rather stable composition of PM 1 in the mine air. Another sub-micrometer particle type originated from the combustion products of explosives (e.g., nitrate and ammonium). On average, PM 1 in the mine was composed of 62%, 30%, and 8% of organic matter, black carbon, and major inorganic species, respectively. Regarding the analyzed elements (e.g., Al, Si, Fe, Ca), many of them peaked at >1 mm indicating mineral dust origin. The average particle number concentration in the mine was (2.3 § 1.4) Ã 10 4 #/cm 3 . The maximum of particle number size distribution was between 30 and 200 nm for most of the time but there was frequently a distinct mode <30 nm. The potential origin of nano-size particles remained as challenge for future studies.

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Section: Introductionmentioning

confidence: 99%

Particulate matter characteristics, dynamics, and sources in an underground mine

Saarikoski

Teinilä

Timonen

et al. 2017

Aerosol Science and Technology

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“…In the previous studies, it has been found that the main † Now also at AGCO Power, FI-37240 Linnavuori, Finland particle emission sources in mines and mining areas are ore extraction and processing activities, diesel vehicles and blastings (McDonald et al, 2003;Ghose, 2007;Harris et al, 2015;Saarikoski et al, 2018;Timonen et al, 2018). Mechanical ore handling produces mostly dust with particle size larger than ~2.5 µm.…”

Section: Introductionmentioning

confidence: 99%

Sources and Characteristics of Particulate Matter at Five Locations in an Underground Mine

Saarikoski

Salo

Bloss

et al. 2019

Aerosol Air Qual. Res.

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The sources and characteristics of particulate matter (PM) were determined in a modern underground chrome mine in Finland. Measurements were conducted at five locations in the mine: the maintenance area, blasting area, ore pit dumping area, crushing station and conveyor belt. The measurement setup consisted of a Soot Particle Aerosol Mass Spectrometer (SP-AMS) for the particles' chemical composition; an Electrical Low Pressure Impactor, Nano Scanning Mobility Particle Sizer and Optical Particle Counter for the particle number and mass size distribution; and an Aethalometer for black carbon (BC). The particle number and mass concentration depended strongly on the measurement location and period. The PM 10 and the total number concentrations varied from 22 to 1100 µg m-3 and 1.7 × 10 3 to 2.3 × 10 5 # cm-3 , respectively, in the mine. In terms of the composition, the sub-micrometer particles (PM 1) consisted mostly of organic matter and BC, but at the blasting site, the fraction of sulfate was also significant. The SP-AMS data was analyzed with Positive Matrix Factorization (PMF) to identify and quantify the main sources of PM 1 in the mine. Based on the PMF analysis, the PM 1 originated mostly from diesel engines (35-84%) and blasting (7-60%). The impact of blasting on air quality in mines may become more pronounced in the future as the emissions from diesel engines decrease due to alternative fuels and better engine and aftertreatment technologies.

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Analysis of Dust to Evaluate the Incidence of Pneumoconiosis in Huainan Coal Mines

Jiang

Jun

et al. 2016

Analytical Letters

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Collecting representative dust samples: A comparison of various sampling methods in underground coal mines

Cited by 5 publications

References 2 publications

Particulate matter characteristics, dynamics, and sources in an underground mine

Particulate matter characteristics, dynamics, and sources in an underground mine

Sources and Characteristics of Particulate Matter at Five Locations in an Underground Mine

Analysis of Dust to Evaluate the Incidence of Pneumoconiosis in Huainan Coal Mines

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