Micro-characterization of Dust and Materials of Dust Origin at a Cement Industry Located in Bangladesh
Abstract Industrial dust generation from material processing is an uninterrupted phenomenon, hence analyzing materials of dust origin with dust particles is important to comprehend the entire scenario of occupational health exposure (OHE). In this study, we investigated the morphological, elemental,...
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Springer
2022-10-01
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| Series: | Aerosol and Air Quality Research |
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| Online Access: | https://doi.org/10.4209/aaqr.220109 |
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| author | Zerin Binte Alam Kazi A. B. M. Mohiuddin |
| author_facet | Zerin Binte Alam Kazi A. B. M. Mohiuddin |
| author_sort | Zerin Binte Alam |
| collection | DOAJ |
| description | Abstract Industrial dust generation from material processing is an uninterrupted phenomenon, hence analyzing materials of dust origin with dust particles is important to comprehend the entire scenario of occupational health exposure (OHE). In this study, we investigated the morphological, elemental, and mineralogical characteristics of engendered dust and materials of dust origin in the cement industry (CI) in Bangladesh. We accumulated samples from dust collectors and the internal roadways of the CI to understand the nature of atmospheric dust in the CI. All the materials that could potentially be the sources of the dust of the CI were collected, including clinker, gypsum, limestone, fly ash, slag, and two types of cement products. Scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDS), X-ray powder diffraction (XRD), and fourier-transform infrared spectroscopy (FTIR) were performed for the characterization. SEM micrographs showed the presence of fine (particles ≤ PM2.5) and ultra-fine (particles ≤ PM0.1) particles with diverse morphology in the studied samples. Ca, Si, Al, Mg, Fe, K, Na, Mo, and Ti were found as existing metallic elements in samples through the EDS technique. Several minerals of silicate, oxide, carbonate, and sulfate were detected with major crystalline phases of Portland cement by SEM-EDS, XRD, and FTIR analyses in samples; among which some are well documented as occupational hazards. The trace presence of organic carbon was observed in all FTIR spectra. The most significant outcome of this study is the detection of carcinogenic substances such as crystalline silica (quartz, cristobalite) and asbestoses (anthophyllite, chrysotile, and crocidolite) in samples. For instance, quartz was found in the dust of dust collectors while road dust of the CI showed the existence of both quartz and cristobalite. However, asbestoses were found only in source materials, but they could be released anytime during material handling, thus creating OHE. |
| format | Article |
| id | doaj-art-6d4cc123423544e8b680f6f28733dd34 |
| institution | Kabale University |
| issn | 1680-8584 2071-1409 |
| language | English |
| publishDate | 2022-10-01 |
| publisher | Springer |
| record_format | Article |
| series | Aerosol and Air Quality Research |
| spelling | doaj-art-6d4cc123423544e8b680f6f28733dd342025-02-09T12:22:41ZengSpringerAerosol and Air Quality Research1680-85842071-14092022-10-0123112110.4209/aaqr.220109Micro-characterization of Dust and Materials of Dust Origin at a Cement Industry Located in BangladeshZerin Binte Alam0Kazi A. B. M. Mohiuddin1Department of Civil Engineering, Khulna University of Engineering & TechnologyDepartment of Civil Engineering, Khulna University of Engineering & TechnologyAbstract Industrial dust generation from material processing is an uninterrupted phenomenon, hence analyzing materials of dust origin with dust particles is important to comprehend the entire scenario of occupational health exposure (OHE). In this study, we investigated the morphological, elemental, and mineralogical characteristics of engendered dust and materials of dust origin in the cement industry (CI) in Bangladesh. We accumulated samples from dust collectors and the internal roadways of the CI to understand the nature of atmospheric dust in the CI. All the materials that could potentially be the sources of the dust of the CI were collected, including clinker, gypsum, limestone, fly ash, slag, and two types of cement products. Scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDS), X-ray powder diffraction (XRD), and fourier-transform infrared spectroscopy (FTIR) were performed for the characterization. SEM micrographs showed the presence of fine (particles ≤ PM2.5) and ultra-fine (particles ≤ PM0.1) particles with diverse morphology in the studied samples. Ca, Si, Al, Mg, Fe, K, Na, Mo, and Ti were found as existing metallic elements in samples through the EDS technique. Several minerals of silicate, oxide, carbonate, and sulfate were detected with major crystalline phases of Portland cement by SEM-EDS, XRD, and FTIR analyses in samples; among which some are well documented as occupational hazards. The trace presence of organic carbon was observed in all FTIR spectra. The most significant outcome of this study is the detection of carcinogenic substances such as crystalline silica (quartz, cristobalite) and asbestoses (anthophyllite, chrysotile, and crocidolite) in samples. For instance, quartz was found in the dust of dust collectors while road dust of the CI showed the existence of both quartz and cristobalite. However, asbestoses were found only in source materials, but they could be released anytime during material handling, thus creating OHE.https://doi.org/10.4209/aaqr.220109Occupational health exposureSEM-EDSXRDFTIRCrystalline silicaAsbestos |
| spellingShingle | Zerin Binte Alam Kazi A. B. M. Mohiuddin Micro-characterization of Dust and Materials of Dust Origin at a Cement Industry Located in Bangladesh Aerosol and Air Quality Research Occupational health exposure SEM-EDS XRD FTIR Crystalline silica Asbestos |
| title | Micro-characterization of Dust and Materials of Dust Origin at a Cement Industry Located in Bangladesh |
| title_full | Micro-characterization of Dust and Materials of Dust Origin at a Cement Industry Located in Bangladesh |
| title_fullStr | Micro-characterization of Dust and Materials of Dust Origin at a Cement Industry Located in Bangladesh |
| title_full_unstemmed | Micro-characterization of Dust and Materials of Dust Origin at a Cement Industry Located in Bangladesh |
| title_short | Micro-characterization of Dust and Materials of Dust Origin at a Cement Industry Located in Bangladesh |
| title_sort | micro characterization of dust and materials of dust origin at a cement industry located in bangladesh |
| topic | Occupational health exposure SEM-EDS XRD FTIR Crystalline silica Asbestos |
| url | https://doi.org/10.4209/aaqr.220109 |
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