Selenium (Se) plasma levels were studied in 222 coal miners to assess whether selenium is decreased in relation to coal dust exposure, taking age, alcohol, and tobacco consumption into account. Selenium levels decreased significantly with age and current tobacco consumption, among miners aged 34-50. Long-term and current exposure to coal dust were studied. The lowest Se values were observed for those with both long-term and current exposure (60.2 ng/ml), the highest for those never or slightly exposed (64.1 ng/ml); those with long-term exposure not currently exposed fell in an intermediate position (61.3 ng/ml). No relation was observed with alcohol consumption. The association of coal dust with low selenium remained significant after adjustment for age and smoking.
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http://dx.doi.org/10.1002/(SICI)1097-0274(199609)30:3<281::AID-AJIM5>3.0.CO;2-1 | DOI Listing |
Front Public Health
January 2025
Environmental Exposures Vascular Disease Institute, Shanxi Medical University, Taiyuan, Shanxi, China.
Pneumoconiosis is a widespread occupational pulmonary disease caused by inhalation and retention of dust particles in the lungs, is characterized by chronic pulmonary inflammation and progressive fibrosis, potentially leading to respiratory and/or heart failure. Workers exposed to dust, such as coal miners, foundry workers, and construction workers, are at risk of pneumoconiosis. This review synthesizes the international and national classifications, epidemiological characteristics, strategies for prevention, clinical manifestations, diagnosis, pathogenesis, and treatment of pneumoconiosis.
View Article and Find Full Text PDFSci Rep
January 2025
Yili Prefecture Product Quality Institute, Yining, 835000, China.
To study the micro-morphological characteristics of PM2.5 and its effect on ambient air quality, a 7500F scanning electron microscope (SEM) was utilized in this study to examine the micromorphology and elemental composition of PM2.5 and its impact on ambient air quality during heavily polluted weather in Yining City in the winter of 2018-2019.
View Article and Find Full Text PDFJ Air Waste Manag Assoc
January 2025
School of Emergency Management and Safety Engineering, China University of Mining and Technology (Beijing), Beijing, China.
Dust emissions from open-pit mining pose a significant threat to environmental safety and human health. Currently, the range of dust suppressants used in coal mining is limited, often failing to account for their suitability across various stockpiles. This oversight results in poor infiltration after application, leading to insufficient crust formation and reduced durability.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
College of Safety and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China; State Key Laboratory of Mining Disaster Prevention and Control Co-found by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao 266590, China. Electronic address:
Coal mines generate significant amounts of dust during production, transportation, and stockpiling, leading to health hazards and environmental pollution. To address the inefficiencies and environmental impact of current chemical dust suppressants, a novel dust suppressant was developed utilizing cellulose derived from Napier grass (NG), modified through carboxymethylation, and supplemented with polyvinyl alcohol (PVA) and polyacrylamide (PAM). Orthogonal experiments identified the optimal ratio of sodium carboxymethyl cellulose (CMC), PAM, PVA, and octyl phenol polyoxyethylene ether (JFC-1) as 1:0.
View Article and Find Full Text PDFEnviron Geochem Health
January 2025
College of Resources and Environmental Engineering, Guizhou University, Guiyang, 550025, China.
The superposition of heavy metals (HMs) from multiple anthropogenic sources in geochemical anomaly areas makes it difficult to discriminate prime sources in atmospheric HMs. This study utilized a combination of microscopic features, positive matrix factorisation, and Pb isotope fingerprints to trace the main sources of HMs bound to total suspended particulates (TSP) at a pollution site (Msoshui: MS) and control site (Lushan: LS) in northwestern Guizhou. The results reveal that the concentrations of Cd, Pb, Cr, As, Cu, Ni, and Zn in the TSP of LS are 3.
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