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Temporal–Spatial Distribution of Vehicle Transportation Pavement Dust Migration in an Open-Pit Mine
[Image: see text] To investigate the dust source of the most polluted equipment in the open-pit mine, this paper studied the temporal–spatial distribution laws of dust migration in the vehicle transportation pavements in the open-pit mine via theoretical analysis and a field test. The results show t...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2020
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7346255/ https://www.ncbi.nlm.nih.gov/pubmed/32656424 http://dx.doi.org/10.1021/acsomega.0c01460 |
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author | Wei, Dingyi Du, Cuifeng Lin, Yifan Chang, Baomeng Wang, Yuan |
author_facet | Wei, Dingyi Du, Cuifeng Lin, Yifan Chang, Baomeng Wang, Yuan |
author_sort | Wei, Dingyi |
collection | PubMed |
description | [Image: see text] To investigate the dust source of the most polluted equipment in the open-pit mine, this paper studied the temporal–spatial distribution laws of dust migration in the vehicle transportation pavements in the open-pit mine via theoretical analysis and a field test. The results show that the dust concentration of the same horizontal distance from the pavement centerline remains roughly stable, which proves that the dust above the pavements is a continuous line source. In the horizontal direction, the maximum dust and baseline concentration reached heights of 1–3 and 20 m away from the wheels, respectively, while they are obtained at heights of 0.5 and 2.2 m away from the pavement in the vertical distance, respectively. The spatial concentration distribution of the dust clearly proves that the dust movement mode is a jumping mode. It takes 6 and 30 s after the vehicle had passed to achieve the maximum dust and baseline concentration, respectively. The dust concentration of a fully loaded vehicle is 2–3 times greater than that of a no-load vehicle. Meanwhile, the dust concentration of a sprinkling pavement is as 10% as that of an un-sprinkling pavement. The results of the migration of transportation dust and temporal–spatial distribution provide useful references for the analysis of dust source intension and pollutant diffusion in open-pit mines. Furthermore, the efficient and low-cost moisturized dust suppressant would be the future direction to develop in different mining areas. |
format | Online Article Text |
id | pubmed-7346255 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-73462552020-07-10 Temporal–Spatial Distribution of Vehicle Transportation Pavement Dust Migration in an Open-Pit Mine Wei, Dingyi Du, Cuifeng Lin, Yifan Chang, Baomeng Wang, Yuan ACS Omega [Image: see text] To investigate the dust source of the most polluted equipment in the open-pit mine, this paper studied the temporal–spatial distribution laws of dust migration in the vehicle transportation pavements in the open-pit mine via theoretical analysis and a field test. The results show that the dust concentration of the same horizontal distance from the pavement centerline remains roughly stable, which proves that the dust above the pavements is a continuous line source. In the horizontal direction, the maximum dust and baseline concentration reached heights of 1–3 and 20 m away from the wheels, respectively, while they are obtained at heights of 0.5 and 2.2 m away from the pavement in the vertical distance, respectively. The spatial concentration distribution of the dust clearly proves that the dust movement mode is a jumping mode. It takes 6 and 30 s after the vehicle had passed to achieve the maximum dust and baseline concentration, respectively. The dust concentration of a fully loaded vehicle is 2–3 times greater than that of a no-load vehicle. Meanwhile, the dust concentration of a sprinkling pavement is as 10% as that of an un-sprinkling pavement. The results of the migration of transportation dust and temporal–spatial distribution provide useful references for the analysis of dust source intension and pollutant diffusion in open-pit mines. Furthermore, the efficient and low-cost moisturized dust suppressant would be the future direction to develop in different mining areas. American Chemical Society 2020-06-23 /pmc/articles/PMC7346255/ /pubmed/32656424 http://dx.doi.org/10.1021/acsomega.0c01460 Text en Copyright © 2020 American Chemical Society This is an open access article published under an ACS AuthorChoice License (http://pubs.acs.org/page/policy/authorchoice_termsofuse.html) , which permits copying and redistribution of the article or any adaptations for non-commercial purposes. |
spellingShingle | Wei, Dingyi Du, Cuifeng Lin, Yifan Chang, Baomeng Wang, Yuan Temporal–Spatial Distribution of Vehicle Transportation Pavement Dust Migration in an Open-Pit Mine |
title | Temporal–Spatial Distribution of Vehicle Transportation
Pavement Dust Migration in an Open-Pit Mine |
title_full | Temporal–Spatial Distribution of Vehicle Transportation
Pavement Dust Migration in an Open-Pit Mine |
title_fullStr | Temporal–Spatial Distribution of Vehicle Transportation
Pavement Dust Migration in an Open-Pit Mine |
title_full_unstemmed | Temporal–Spatial Distribution of Vehicle Transportation
Pavement Dust Migration in an Open-Pit Mine |
title_short | Temporal–Spatial Distribution of Vehicle Transportation
Pavement Dust Migration in an Open-Pit Mine |
title_sort | temporal–spatial distribution of vehicle transportation
pavement dust migration in an open-pit mine |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7346255/ https://www.ncbi.nlm.nih.gov/pubmed/32656424 http://dx.doi.org/10.1021/acsomega.0c01460 |
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