Resuspension method for road surface dust collection and aerodynamic size distribution characterization--颗粒学报PARTICUOLOGY

Chen, J., Zheng, H., Wang, W., Liu, H., Lu, L., Bao, L., & Ren, L. (2006). Resuspension method for road surface dust collection and aerodynamic size distribution characterization. China Particuology, 4(6), 300-303. https://doi.org/10.1016/S1672-2515(07)60279-6

Resuspension method for road surface dust collection and aerodynamic size distribution characterization

Jianhua Chen ^a, Hongfeng Zheng ^b, Wei Wang ^a *, Hongjie Liu ^a, Ling Lu ^a, Linfa Bao ^a, Lihong Ren ^a

a Chinese Research Academy of Environmental Sciences, Beijing 100012, China
b China University of Mining & Technology, Beijing 100083, China

10.1016/S1672-2515(07)60279-6

Volume 4, Issue 6, December 2006, Pages 300-303

Received 13 April 2006, Accepted 15 November 2006, Available online 14 December 2007.

E-mail: wangwei@craes.org.cn

Highlights

Abstract

Traffic-generated fugitive dust is a source of urban atmospheric particulate pollution in Beijing. This paper introduces the resuspension method, recommended by the US EPA in AP-42 documents, for collecting Beijing road-surface dust. Analysis shows a single-peak distribution in the number size distribution and a double-peak mode for mass size distribution of the road surface dust. The median diameter of the mass concentration distribution of the road dust on a high-grade road was higher than that on a low-grade road. The ratio of PM_2.5 to PM₁₀ was consistent with that obtained in a similar study for Hong Kong. For the two selected road samples, the average relative deviation of the size distribution was 10.9% and 11.9%. All results indicate that the method introduced in this paper can effectively determine the size distribution of fugitive dust from traffic.

Graphical abstract

Keywords

road surface dust; collection; size distribution

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