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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...

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Autores principales: Wei, Dingyi, Du, Cuifeng, Lin, Yifan, Chang, Baomeng, Wang, Yuan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2020
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.
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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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