GIST Scholar
College of Engineering
Department of Environment and Energy Engineering
1. Journal Articles
Morphological and elemental properties of urban aerosols among PM events and different traffic systems
- Type
- Article
- Citation
- JOURNAL OF HAZARDOUS MATERIALS, v.317, pp.108 - 118
- Issued Date
- 2016-11
- Abstract
- Morphology and elemental composition of individual fine ambient particles varied among types of PM events and between two different urban environments having different major transportation systems (gasoline/diesel vehicles versus motorcycles). Carbonaceous particles were the most dominant in PM events, whereas S-rich particles were the highest in non-events at urban Gwangju in Korea. The aged soot, semi-volatile organic (SVO), and non-volatile organic (NVO) particles were more abundant in the polluted-long range transport (LTP) event than those in the dust-LTP event and non-event. In the dust-LTP event, the aged mineral dust particles outnumbered the fresh ones, suggesting the mineral dust particles were aged during their long-range transport. At HoChiMinh (HCM) in Vietnam, the fraction of carbonaceous particles was much higher than Gwangju (66% versus 30%) possibly due to more abundant two-stroke motor vehicles at HCM. Of the carbonaceous particles, combustion soot (19%) was the highest, followed by NVO (18%), SVO (17%), and biological particles (11%) at HCM, whereas SVO (11%) and NVO (10%) particles were the highest, followed by combustion soot particles (8%) at Gwangju. The higher fraction of mineral dust particles was also observed at HCM, indicating the sampling site was influenced by dust from unpaved roads and construction sites. © 2016 Elsevier B.V..
- Publisher
- Elsevier B.V.
- ISSN
- 0304-3894
- Appears in Collections:
- Department of Environment and Energy Engineering > 1. Journal Articles
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