Evaluation of factors influencing road dust loadings in a Latin American urban center
DOI
https://doi.org/10.1080/10962247.2020.1806946
Document Type
Article
Publication Date
1-1-2021
Publication Title
Journal of the Air and Waste Management Association
Abstract
Vehicle non-exhaust emissions are a major component of particle matter, including the direct wear of tires, brakes, road, and the resuspension of deposited particles. It is suggested that resuspended PM (RPM) emissions can be at the same magnitude or even larger than combustion emissions in urban centers. Factors affecting RPM can be included in four categories: road characteristics, traffic condition, land use, and meteorology. To investigate and evaluate these influencing factors, road dust less than 10 micrometers (RD10) was collected in 41 sites across Bogotá. The sampling points had diverse characteristics. RD10 levels varied between 1.0 and 45.8 mg/sq m with an average of 8.9 ± 8.4 mg/sq m. Lower RD10 values were observed when vegetation density was high, pavement condition good, driving speeds fast and construction activities absent. Meanwhile, RD10 increased under heavy-duty traffic influence and dry conditions. Among dust mitigation measures, management of land-use variables could be as important as traffic control and road maintenance.
Volume
71
Issue
2
First Page
268
Last Page
280
ISSN
10962247
Recommended Citation
Pachon, Jorge E.; Vanegas, Sebastián; Saavedra, Constanza; Amato, Fulvio; Silva, Luis F. O.; Blanco, Karen; Chaparro, Rafael; and Casas, Oscar M., "Evaluation of factors influencing road dust loadings in a Latin American urban center" (2021). Scopus Unisalle. 40.
https://ciencia.lasalle.edu.co/scopus_unisalle/40
PubMed ID
32758088
Identifier
SCOPUS_ID:85095854251