Concentration variations in primary and secondary particulate matter near a major road in Korea

Journal Article · Thu Mar 31 00:00:00 EDT 2016 · Asian Journal of Atmospheric Environment

DOI:https://doi.org/10.5572/ajae.2016.10.1.032· OSTI ID:1364336

Ghim, Young Sung ^[1]; Won, Soo Ran ^[2]; Choi, Yongjoo ^[1]; Chang, Young -Soo ^[3]; Jin, Hyoun Cher ^[4]; Kim, Yong Pyo ^[5]; Kang, Chang-Hee ^[6]

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1. Hankuk Univ. of Foreign Studies, Gyeonggi (Korea)
2. Hankuk Univ. of Foreign Studies, Gyeonggi (Korea); National Institute of Environmental Research, Incheon (Korea)
3. Argonne National Lab. (ANL), Argonne, IL (United States)
4. Korea Institute of Science and Technology, Seoul (Korea)
5. Ewha Womans Univ., Seoul (Korea)
6. Jeju National Univ., Jeju (Korea)

Here, particle-phase concentrations were measured at 10, 80, and 200 m from the roadside of a national highway near Seoul in January and May 2008. The highway has two lanes each way, with an average hourly traffic volume of 1,070 vehicles. In January 2008, PM₁₀ concentrations decreased from 10 to 80 m but increased at 200 m. Black carbon (BC) decreased only slightly with distance due to the influence of biomass burning and open burning from the surrounding areas. In May 2008, the effect of secondary formation on both PM₁₀ and PM_2.5 was significant due to high temperatures compared with January. Because on-road emissions had little effect on secondary formation for a short time, variations in PM₁₀ concentrations became smaller, and PM_2.5 concentrations increased with distance. The effects of fugitive dust on PM concentrations were greater in May than in January when the mean temperature was below freezing. In the composition variations, the amounts of primary ions, organic carbon (OC), and BC were larger in January, while those of secondary ions and others were larger in PM₁₀, as well as PM_2.5 in May.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: Hankuk Univ. of Foreign Studies, Korea; USDOE
• Grant/Contract Number: AC02-06CH11357
• OSTI ID: 1364336
• Journal Information: Asian Journal of Atmospheric Environment, Vol. 10, Issue 1; ISSN 1976-6912
• Publisher: Asian Association for Atmospheric Environment
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
09 BIOMASS FUELS
vehicle emissions
biomass burning
fugitive dust
open burning
secondary formation