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Comparison of resuspended road dust concentration for identifying optimum sampling position on a mobile laboratory vehicle

Title
Comparison of resuspended road dust concentration for identifying optimum sampling position on a mobile laboratory vehicle
Author
육세진
Keywords
Jing Wang
Issue Date
2021-11
Publisher
TAYLOR & FRANCIS INC
Citation
AEROSOL SCIENCE AND TECHNOLOGY, v. 55, NO. 11, Page. 1230-1238
Abstract
The accurate measurement of resuspended road dust from driving vehicles is key to assessing its role in air pollution. In this study, we used numerical analysis to investigate the behavior of resuspended road dust and selected the optimum sampling positions for use in a mobile laboratory (ML) to measure resuspended road dust emissions. Transient simulation of vehicle driving was performed by depicting wheel rim shape and tire tread pattern in detail. The resuspended road dust distributions generated around the vehicle wheels and the flow around the vehicle were analyzed according to the vehicle speed. Based on the analysis, four sampling positions with concentrated distributions of resuspended road dust were selected. To verify the simulation results, sampling inlets were installed on a ML in the selected positions, and resuspended road dust was collected at each position using a Teflon filter at vehicle speeds of 30, 40, and 50 km/h. Mass measurements of the resuspended road dust collected at the four locations showed that the most dust was collected at the position at the bottom of the vehicle immediately behind the wheel, and the overall trend was similar to the simulation results. Therefore, when measuring resuspended road dust using a ML, sampling inlets installed at the locations derived in this study are expected to yield more effective measurements for representing the pollution level of the road. Copyright © 2021 American Association for Aerosol Research.
URI
https://www.tandfonline.com/doi/full/10.1080/02786826.2021.1938967https://repository.hanyang.ac.kr/handle/20.500.11754/177829
ISSN
0278-6826;1521-7388
DOI
10.1080/02786826.2021.1938967
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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