A field study on the possible attachment of DPM and respirable dust in mining environments
Typcial monitoring procedures for diesel particulate matter (DPM) in mines include the collection of filter samples using particle size selectors. The size selectors are meant to separate the DPM, which is generally considered to occur in the submicron range (i.e., < 0.8 μm), from larger dust par...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Central Mining Institute (Główny Instytut Górnictwa)
2019-05-01
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| Series: | Journal of Sustainable Mining |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2300396018301721 |
| _version_ | 1819118172071002112 |
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| author | Sallie Gaillard Emily Sarver Emanuele Cauda |
| author_facet | Sallie Gaillard Emily Sarver Emanuele Cauda |
| author_sort | Sallie Gaillard |
| collection | DOAJ |
| description | Typcial monitoring procedures for diesel particulate matter (DPM) in mines include the collection of filter samples using particle size selectors. The size selectors are meant to separate the DPM, which is generally considered to occur in the submicron range (i.e., < 0.8 μm), from larger dust particles that could present analytical interferences. However, previous studies have demonstrated that this approach can sometimes result in undersampling, therefore, excluding significant fractions of the DPM mass. The excluded fraction may represent oversized DPM particles, but another possibility is that submicron DPM attaches to supramicron dust particles such that it is effectively oversized. To gain insights into this possibility, a field study was conducted in an underground stone mine. Submicron, respirable, and total airborne particulate filter samples were collected in three locations to determine elemental carbon (EC) and total carbon (TC), which are commonly used as analytical surrogates for DPM. Concurrent with the collection of the filter samples, a low-flow sampler with an electrostatic precipitator was also used to collect airborne particulates onto 400-mesh copper grids for analysis by transmission electron microscope (TEM). Results indicated that, while typical submicron sampling did account for the majority of DPM mass in the study mine, DPM-dust attachment can indeed occur. The effect of exposure to such attached particulates has not been widely investigated. Keywords: Diesel particulate matter, Dust, Transmission electron microscope, NIOSH method 5040, Submicron particles |
| first_indexed | 2024-12-22T05:44:39Z |
| format | Article |
| id | doaj.art-aa9ba7a2a423460a92b297681c16fece |
| institution | Directory Open Access Journal |
| issn | 2300-3960 |
| language | English |
| last_indexed | 2024-12-22T05:44:39Z |
| publishDate | 2019-05-01 |
| publisher | Central Mining Institute (Główny Instytut Górnictwa) |
| record_format | Article |
| series | Journal of Sustainable Mining |
| spelling | doaj.art-aa9ba7a2a423460a92b297681c16fece2022-12-21T18:37:04ZengCentral Mining Institute (Główny Instytut Górnictwa)Journal of Sustainable Mining2300-39602019-05-01182100108A field study on the possible attachment of DPM and respirable dust in mining environmentsSallie Gaillard0Emily Sarver1Emanuele Cauda2Virginia Tech, Department of Mining and Minerals Engineering, Blacksburg, VA, 24060, USAVirginia Tech, Department of Mining and Minerals Engineering, Blacksburg, VA, 24060, USA; Corresponding author. Virginia Tech, Deartment of Mining and Minerals Engineering, 108A Holden Hall, 445 Old Turner Street, Blacksburg, VA, 24061, USA.CDC/NIOSH Office of Mine Safety and Health Research (OMSHR), Pittsburgh, PA, 15236, USATypcial monitoring procedures for diesel particulate matter (DPM) in mines include the collection of filter samples using particle size selectors. The size selectors are meant to separate the DPM, which is generally considered to occur in the submicron range (i.e., < 0.8 μm), from larger dust particles that could present analytical interferences. However, previous studies have demonstrated that this approach can sometimes result in undersampling, therefore, excluding significant fractions of the DPM mass. The excluded fraction may represent oversized DPM particles, but another possibility is that submicron DPM attaches to supramicron dust particles such that it is effectively oversized. To gain insights into this possibility, a field study was conducted in an underground stone mine. Submicron, respirable, and total airborne particulate filter samples were collected in three locations to determine elemental carbon (EC) and total carbon (TC), which are commonly used as analytical surrogates for DPM. Concurrent with the collection of the filter samples, a low-flow sampler with an electrostatic precipitator was also used to collect airborne particulates onto 400-mesh copper grids for analysis by transmission electron microscope (TEM). Results indicated that, while typical submicron sampling did account for the majority of DPM mass in the study mine, DPM-dust attachment can indeed occur. The effect of exposure to such attached particulates has not been widely investigated. Keywords: Diesel particulate matter, Dust, Transmission electron microscope, NIOSH method 5040, Submicron particleshttp://www.sciencedirect.com/science/article/pii/S2300396018301721 |
| spellingShingle | Sallie Gaillard Emily Sarver Emanuele Cauda A field study on the possible attachment of DPM and respirable dust in mining environments Journal of Sustainable Mining |
| title | A field study on the possible attachment of DPM and respirable dust in mining environments |
| title_full | A field study on the possible attachment of DPM and respirable dust in mining environments |
| title_fullStr | A field study on the possible attachment of DPM and respirable dust in mining environments |
| title_full_unstemmed | A field study on the possible attachment of DPM and respirable dust in mining environments |
| title_short | A field study on the possible attachment of DPM and respirable dust in mining environments |
| title_sort | field study on the possible attachment of dpm and respirable dust in mining environments |
| url | http://www.sciencedirect.com/science/article/pii/S2300396018301721 |
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