Mineralogy, geochemistry and toxicity of size-segregated respirable deposited dust in underground coal mines

Trechera, Pedro; Moreno, Teresa; Córdoba, Patricia; Moreno, Natàlia; Zhuang, Xinguo; Li, Baoqing; Li, Jing; Shangguan, Yunfei; Kandler, Konrad; Dominguez, Ana Oliete; Kelly, Frank J.; Querol, Xavier

doi:10.1016/j.jhazmat.2020.122935

Cited by 58 publications

(24 citation statements)

References 72 publications

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“…4a and 4b, bottom). This result is similar to previous results from Trechera et al (2020Trechera et al ( , 2021. Mn is probably joined with organic matter (producing coarser particles), which is commonly associated with carbonate minerals (Swaine 1990).…”

Section: Respirable Deposited Dust (Rdd 4 and Rdd 25 ) Samplessupporting

confidence: 91%

“…When comparing the different coal mines, lower PM 10 concentrations were recorded in three mines, Murcki-Staszic, Pniowek zone b and Bielszowice. In contrast, in the Knurów mine, concentrations of Al 2 O 3 , CaO, Fe 2 O 3 , K 2 O, MgO, Na 2 O, as well as metals such as Pb and Cr, were higher in comparison with other mines from this and other studies (Trechera et al 2020(Trechera et al , 2021. When PM 10 levels produced by each mining activity are compared, elevated levels of As (2.2 times), Ba (1.5 times), and Li (2.2 times) are evidenced in the Pniowek zone c, and Zn (1.7-2.3 times, Ba (1.5 times) and Cu (2 times) in the Marcel mine (zones a and b).…”

Section: Upper Silesian Coal Basin Pm 10 Concentrationscontrasting

confidence: 74%

“…Another interesting pattern is the higher ambient concentrations of Mn and Fe 2 O 3 in comparison with similar studies carried out in Chinese underground coal mines (Trechera et al 2020(Trechera et al , 2021, which are possibly from machine wear or from higher Mn and Fe contents in the Slovenian coals.…”

Section: Velenje Coal Basin Pm 10 Concentrationssupporting

confidence: 56%

“…This fact makes sense because the coal matrix (organic fraction) breaks to give coarser dust particles than clay, quartz and other mineral species, which increases the ash yields. Furthermore, the very low moisture contents of these DD 500 samples allow finding these ash and high loads of fine DD fractions (Palmer et al 1990;Jiang and Sheng 2018;Trechera et al 2020). Another possible reason for the correlation between particle size and ash content in the USCB, not related to moisture (11) DD 4 (%v) = 0.664%HTA, db − 10.416 R 2 = 0.977 (12) DD 10 (%v) = 0.949%HTA, db − 10.502 R 2 = 0.982…”

Section: Upper Silesian Coal Basin Samplesmentioning

confidence: 99%

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Chemistry and particle size distribution of respirable coal dust in underground mines in Central Eastern Europe

Trechera

Querol

Lah³

et al. 2022

Int J Coal Sci Technol

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Despite international efforts to limit worker exposure to coal dust, it continues to impact the health of thousands of miners across Europe. Airborne coal dust has been studied to improve risk models and its control to protect workers. Particle size distribution analyses shows that using spraying systems to suppress airborne dusts can reduce particulate matter concentrations and that coals with higher ash yields produce finer dust. There are marked chemical differences between parent coals and relatively coarse deposited dusts (up to 500 µm, DD500). Enrichments in Ca, K, Ba, Se, Pb, Cr, Mo, Ni and especially As, Sn, Cu, Zn and Sb in the finest respirable dust fractions could originate from: (i) mechanical machinery wear; (ii) variations in coal mineralogy; (iii) coal fly ash used in shotcrete, and carbonates used to reduce the risk of explosions. Unusual enrichments in Ca in mine dusts are attributed to the use of such concrete, and elevated K to raised levels of phyllosilicate mineral matter. Sulphur concentrations are higher in the parent coal than in the DD500, probably due to relatively lower levels of organic matter. Mass concentrations of all elements observed in this study remained below occupational exposure limits.

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Section: Respirable Deposited Dust (Rdd 4 and Rdd 25 ) Samplessupporting

confidence: 91%

Section: Upper Silesian Coal Basin Pm 10 Concentrationscontrasting

confidence: 74%

Section: Velenje Coal Basin Pm 10 Concentrationssupporting

confidence: 56%

Section: Upper Silesian Coal Basin Samplesmentioning

confidence: 99%

See 2 more Smart Citations

Chemistry and particle size distribution of respirable coal dust in underground mines in Central Eastern Europe

Trechera

Querol

Lah³

et al. 2022

Int J Coal Sci Technol

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“…The potential impact of PM on human health can vary widely according to their size and the mineral and chemical composition of the inhaled particles. In general, the finer a particle, the deeper it penetrates the respiratory system and the fraction < 4 µm is commonly accepted as a respirable fraction (Trechera et al 2020 ; Kim et al 2015 ).…”

Section: Introductionmentioning

confidence: 99%

Origin, distribution, and perspective health benefits of particulate matter in the air of underground salt mine: a case study from Bochnia, Poland

Puławska

Manecki

Flasza

et al. 2021

Environ Geochem Health

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The composition and distribution of airborne particles in different locations in a salt mine were determined in terms of their origin, the distance from the air inlet, and the adaptation of post-mining chambers and corridors for tourists and general audience. The composition of aerosols in air was also evaluated from the perspective of human health. Air samples were collected on filters by using portable air pumps, in a historical underground salt mine in Bochnia (Poland), which is currently a touristic and recreation attraction and sanatorium. The particulate matter (PM) concentration was determined using the gravimetric method by weighing quartz filters. The content of carbon, water-soluble constituents, trace elements, and minerals was also determined. A genetic classification of the suspended matter was proposed and comprised three groups: geogenic (fragments of rock salt and associated minerals from the deposit), anthropogenic (carbon-bearing particles from tourist traffic and small amounts of fly ash, soot, and rust), and biogenic particles (occasional pollen). The total PM concentration in air varied between 21 and 79 μg/m3 (with PM4 constituting 4–24 μg/m3). The amount of atmospheric dust components coming from the surface was low and decreased with the distance from the intake shaft, thus indicating the self-cleaning process. NaCl dominated the water-soluble constituents, while Fe, Al, Ag, Mn, and Zn dominated the trace elements, with the concentration of majority of them below 30 ng/m3. These metals are released into air from both natural sources and the wear or/and corrosion of mining and tourists facilities in the underground functional space. No potentially toxic elements or constituents were detected. The presence of salt particles and salty spray in the atmosphere of salt mine, which may have anti-inflammatory and antiallergic properties, is beneficial to human health. This study will allow for a broader look at the potential of halotherapy in underground salt mines from a medical and regulatory point of view.

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Role of Pyrite in Aggravating Coal Worker’s Pneumoconiosis

Sherekar

Jain

Pingle³

et al. 2022

Springer Geology

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Mineralogy, geochemistry and toxicity of size-segregated respirable deposited dust in underground coal mines

Cited by 58 publications

References 72 publications

Chemistry and particle size distribution of respirable coal dust in underground mines in Central Eastern Europe

Chemistry and particle size distribution of respirable coal dust in underground mines in Central Eastern Europe

Origin, distribution, and perspective health benefits of particulate matter in the air of underground salt mine: a case study from Bochnia, Poland

Role of Pyrite in Aggravating Coal Worker’s Pneumoconiosis

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