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Título: | Mineralogy, geochemistry and toxicity of size-segregated respirable deposited dust in underground coal mines |
Autor: | Trechera, Pedro CSIC ORCID; Moreno, Teresa CSIC ORCID ; Córdoba, Patricia CSIC ORCID; Moreno, Natalia CSIC ORCID ; Zhuang, Xinguo; Li, Baoqing; Li, Jing; Shangguan, Yunfei; Kandler, Konrad; Oliete Dominguez, Ana; Kelly, Frank; Querol, Xavier CSIC ORCID | Palabras clave: | Coal mining dust Chemistry China Toxicology Occupational exposure |
Fecha de publicación: | 15-nov-2020 | Editor: | Elsevier | Citación: | Journal of Hazardous Materials 399: 122935 (2020) | Resumen: | We focus on a comparison of the geochemistry and mineralogy patterns found in coal, deposited dust (DD), respirable deposited dust (RDD) and inhalable suspended dust (PM10) from a number of underground mines located in China, with an emphasis on potential occupational health relevance. After obtaining the RDD from DD, a toxicological analysis (oxidative potential, OP) was carried out and compared with their geochemical patterns. The results demonstrate: i) a dependence of RDD/DD on the moisture content for high rank coals that does not exist for low rank coals; ii) RDD enrichment in a number of minerals and/or elements related to the parent coal, the wear on mining machinery, lime gunited walls and acid mine drainage; and iii) the geochemical patterns of RDD obtained from DD can be compared with PM10 with relatively good agreement, demonstrating that the characterization of DD and RDD can be used as a proxy to help evaluate the geochemical patterns of suspended PM10. With regards to the toxicological properties of RDD, the Fe content and other by-products of pyrite oxidation, as well as that of anatase, along with Si, Mn and Ba, and particle size (among others), were highly correlated with Ascorbic Acid and/or Glutathione OP. | Versión del editor: | https://doi.org/10.1016/j.jhazmat.2020.122935 | URI: | http://hdl.handle.net/10261/216994 | DOI: | 10.1016/j.jhazmat.2020.122935 |
Aparece en las colecciones: | (IDAEA) Artículos |
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Mineralogy, geochemistry and toxicity of size-segregated respirable deposited dust in underground coal mines (2).pdf | Artículo principal | 6,53 MB | Adobe PDF | Visualizar/Abrir |
1-s2.0-S0304389420309249-mmc1.docx | Material suplementario | 1,29 MB | Microsoft Word XML | Visualizar/Abrir |
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