Geochemical and Morphological Evaluations of Organic and Mineral Aerosols in Coal Mining Areas: A Case Study of Santa Catarina, Brazil

Segun A. Akinyemi, Marcos L. S. Oliveira, Bemgba B. Nyakuma and Guilherme L. Dotto
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Segun A. Akinyemi: Department of Geology, Faculty of Science, Ekiti State University, Ado Ekiti 362103, Nigeria
Marcos L. S. Oliveira: Department of Civil and Environmental Engineering, Universidad de la Costa, Calle 58 #55-66, Barranquilla 080002, Atl´antico, Colombia
Bemgba B. Nyakuma: Department of Chemistry, Faculty of Sciences, Benue State University, Makurdi 970101, Nigeria
Guilherme L. Dotto: Department of Chemical Engineering, Federal University of Santa Maria, Santa Maria 97105-900, Brazil

Sustainability, 2022, vol. 14, issue 7, 1-13

Abstract: Numerous researchers have described the correlation between the short-term contact of nano-particulate (NP) matter in diverse coal phases and amplified death or hospitalizations for breathing disorders in humans. However, few reports have examined the short-term consequences of source-specific nanoparticles (NPs) on coal mining areas. Advanced microscopic techniques can detect the ultra-fine particles (UFPs) and nanoparticles that contain potential hazardous elements (PHEs) generated in coal mining areas. Secondary aerosols that cause multiple and complex groups of particulate matter (PM 10 , PM 2.5 , PM 1 ) can be collected on dry deposition. In this study, scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HR-TEM) were employed to detect and define the magnitude of particulate matters on restaurants walls at coal mines due to weathering interactions. The low cost self-made passive sampler (SMPS) documented several minerals and amorphous phases. The results showed that most of the detected coal minerals exist in combined form as numerous complexes comprising significant elements (e.g., Al, C, Fe, K, Mg, S, and Ti), whereas others exist as amorphous or organic compounds. Based on the analytical approach, the study findings present a comprehensive understanding of existing potential hazardous elements in the nanoparticles and ultrafine particles from coal mining areas in Brazil.

Keywords: geochemical; organic minerals; aerosols; coal mining; nanoparticles; ultrafine nanoparticles; Brazil (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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