Occupational emphysema in South African miners at autopsy; 1975–2014

Mabila, Sithembile L.; Almberg, K.S.; Friedman, Lee S.; Cohen, Robert A.; Ndlovu, Ntombizodwa; Vorajee, Naseema; Murray, Jill

doi:10.1007/s00420-018-1335-2

Cited by 4 publications

(2 citation statements)

References 26 publications

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“… 2 , 3 However, the inhalation of the fine dust produced in the process of coal mining causes a number of respiratory diseases 4 − 6 including chronic obstructive pulmonary disease, fibrosis associated with diffuse dust, artificial pneumoconiosis, and emphysema. 7 − 10 In addition, dust hazards would become more severe with the continuous improvement in the level of coal mining mechanization. 11 …”

Section: Introductionmentioning

confidence: 99%

“…According to ⟨⟨BP Statistical Review of World Energy⟩⟩ in 2021, China’s total coal production and consumption in 2020 account for 50.7 and 54.3% of the world, respectively . This scenario would remain unaltered in the short term. , However, the inhalation of the fine dust produced in the process of coal mining causes a number of respiratory diseases − including chronic obstructive pulmonary disease, fibrosis associated with diffuse dust, artificial pneumoconiosis, and emphysema. − In addition, dust hazards would become more severe with the continuous improvement in the level of coal mining mechanization …”

Section: Introductionmentioning

confidence: 99%

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Wetting Mechanism and Experimental Study of Synergistic Wetting of Bituminous Coal with SDS and APG1214

Sun

Jing

et al. 2021

ACS Omega

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To solve the problem of poor dust wettability during coal mine dust treatment, sodium dodecyl sulfate (SDS) and alkyl glycoside (APG1214) were selected for compounding. An efficient, environmentally friendly, economical wetting agent was prepared. First, through molecular dynamics simulation studies, it was determined that the tail group C of SDS and APG1214 was adsorbed on the surface of bituminous coal, and the head groups S and O were adsorbed on the surface of water. The simulation result is found to be consistent with the surfactant solution dust removal theory, which proves the confidence of simulation. Then, by comparing the interaction of water–SDS and APG1214–bituminous coal and water–bituminous coal systems and the number of hydrogen bonds, the wetting mechanism of the SDS and APG1214 solution on bituminous coal was revealed. Finally, the surface tension, contact angle, and wetting time of different SDS and APG1214 solutions were determined by experiments and they decreased with decreasing mass fraction of SDS at the same concentration. The surface tension of the SDS and APG1214 solution and the number of micelles affected the wettability of bituminous coal. The optimal concentration of the SDS and APG1214 solution was 0.7%, and the optimal ratio was SDS/APG1214 = 1:3.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Wetting Mechanism and Experimental Study of Synergistic Wetting of Bituminous Coal with SDS and APG1214

Sun

Jing

et al. 2021

ACS Omega

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Effects of commodity on the risk of emphysema in South African miners

Mabila

Almberg

Friedman

et al. 2019

Int Arch Occup Environ Health

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COVID-19: a new burden of respiratory disease among South African miners?

Naidoo

Jeebhay

2021

Current Opinion in Pulmonary Medicine

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Purpose of review Mineworkers in South Africa experience a triple burden of disease due to their distinct work experience. Silicosis increases their risk of tuberculosis (TB), exacerbated by the HIV epidemic. Work-related factors are likely to increase transmission, severity, and post infection sequelae of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Understanding these relationships is important to control the impact of the epidemic. Recent findings SARS-CoV-2 infection rates among mineworkers exceed the population rates in the provinces in which those mines are located. Migrant work, living in crowded hostels, working in narrow poorly ventilated shafts mainly underground constitute important factors that increase transmission risk. Mineworkers continue to experience high levels of silica exposure. The prevalences of silicosis, HIV and pulmonary TB, remain high. Interstitial lung disease, pulmonary TB, and HIV have all been associated with poorer outcomes of SARS-CoV-2 infections. Mineworkers with post infection respiratory sequelae are likely to lose their jobs or lose income, due to the physically demanding nature of underground minework. Summary Further research into the unique work-related risk factors in mining that influence the COVID-19 epidemic is crucial for optimizing current interventions. Reducing SARS-CoV-2 infection transmission, health monitoring of infected and vulnerable workers, and following up of postinfection outcomes is essential to protect the respiratory health of miners.

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Occupational emphysema in South African miners at autopsy; 1975–2014

Cited by 4 publications

References 26 publications

Wetting Mechanism and Experimental Study of Synergistic Wetting of Bituminous Coal with SDS and APG1214

Wetting Mechanism and Experimental Study of Synergistic Wetting of Bituminous Coal with SDS and APG1214

Effects of commodity on the risk of emphysema in South African miners

COVID-19: a new burden of respiratory disease among South African miners?

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