DOI: 10.1016/j.atmosenv.2020.117460
论文题名: Monitoring of polycyclic aromatic hydrocarbons using passive air samplers in Seoul, South Korea: Spatial distribution, seasonal variation, and source identification
作者: Thang P.Q. ; Kim S.-J. ; Lee S.-J. ; Kim C.H. ; Lim H.-J. ; Lee S.-B. ; Kim J.Y. ; Vuong Q.T. ; Choi S.-D.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 229 语种: 英语
英文关键词: Coal combustion
; Mineral oils
; Molecular weight
; Principal component analysis
; Risk assessment
; Roads and streets
; Spatial distribution
; Topography
; Urban growth
; Air monitoring networks
; Atmospheric polycyclic aromatic hydrocarbons
; High molecular weight
; High spatial resolution
; Human risk assessment
; Meteorological condition
; Passive air samplings
; Source identification
; Polycyclic aromatic hydrocarbons
; anthracene
; benzo[a]pyrene
; benzo[b]fluoranthene
; benzo[ghi]perylene
; benzo[k]fluoranthene
; benz[a]anthracene
; chrysene
; coal
; dibenz[a,h]anthracene
; fluoranthene
; fluorene
; gasoline
; indeno[1,2,3c,d]pyrene
; phenanthrene
; polycyclic aromatic hydrocarbon
; polyurethan foam
; pyrene
; unclassified drug
; air sampling
; biomass
; combustion
; concentration (composition)
; diesel
; environmental monitoring
; PAH
; principal component analysis
; risk assessment
; source identification
; spatial distribution
; spatial resolution
; air monitoring
; air sampling
; Article
; biomass
; combustion
; heating
; meteorology
; molecular weight
; passive air sampling
; priority journal
; seasonal variation
; South Korea
; summer
; urban population
; winter
; China
; Korea
学科: PAHs
; PUF-PAS
; Seasonal variation
; Seoul
; Source identification
中文摘要: Seoul, the capital of South Korea, is one of the largest megacities in northeast Asia. Previous studies have monitored atmospheric polycyclic aromatic hydrocarbons (PAHs) in Seoul, but few have produced highly spatially resolved data. In this study, a total of 144 polyurethane foam-passive air samplers (PUF-PASs) were deployed at 36 sites (4 road, 26 urban, and 6 background sites) in Seoul during the summer of 2016 and the winter of 2017. The concentrations of Σ13 PAHs fell within a range of 2.6–49.9 ng/m3 in summer and 15.5–77.8 ng/m3 in winter. Low-molecular-weight PAHs with 3–4 rings were dominant (accounting for about 97% of all PAHs) at all sampling sites in both seasons compared to high-molecular-weight PAHs with 5–6 rings. Phenanthrene was the most abundant individual compound, accounting for 35–54% and 42–52% of the total PAHs in summer and winter, respectively. The spatial distribution of PAHs was determined by traffic, domestic heating, topography, transport, and meteorological conditions. The concentration of PAHs at the road sites was higher than at the urban and background sites, indicating that vehicular exhaust was a major source in both seasons. In addition, diagnostic ratios and principal component analysis revealed the influence of various sources, such as gasoline and diesel emissions and coal and biomass combustion. Backward air trajectory analysis highlighted the influence of long-range transport from northern China and North Korea during the winter, whereas the influence of local emissions and satellite cities appeared to dominate during the summer. In conclusion, passive air sampling was successfully employed to identify major sources of PAHs in an Asian megacity, indicating that it could produce data with a high spatial resolution for use in human risk assessment and air monitoring networks. © 2020 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160822
Appears in Collections: 气候变化与战略
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作者单位: School of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea; Institute of Environmental Technology (IET), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet Street, Nghia Do, Cau Giay, Hanoi, Viet Nam; Center for Environment, Health and Welfare Research, Korea Institute of Science and Technology (KIST), Seoul, 02792, South Korea
Recommended Citation:
Thang P.Q.,Kim S.-J.,Lee S.-J.,et al. Monitoring of polycyclic aromatic hydrocarbons using passive air samplers in Seoul, South Korea: Spatial distribution, seasonal variation, and source identification[J]. Atmospheric Environment,2020-01-01,229