气候变化领域集成服务门户(CCPortal): Spatial-seasonal variations and source identification of volatile organic compounds using passive air samplers in the metropolitan city of Seoul, South Korea

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DOI	10.1016/j.atmosenv.2020.118136
	Spatial-seasonal variations and source identification of volatile organic compounds using passive air samplers in the metropolitan city of Seoul, South Korea
	Kim S.-J.; Lee S.-J.; Lee H.-Y.; Park H.-J.; Kim C.-H.; Lim H.-J.; Lee S.-B.; Kim J.Y.; Schlink U.; Choi S.-D.
发表日期	2021
ISSN	1352-2310
卷号	246
英文摘要	The large emission of volatile organic compounds (VOCs) is an important environmental issue in Seoul, the capital of South Korea. However, the spatial distribution of VOC emissions has not yet been clearly revealed. In this study, passive air samplers (PASs) were seasonally deployed to measure 50 VOCs at 26 urban, 4 road, and 6 background sites in Seoul. Among the target compounds, toluene (summer: 8.72 μg/m3; winter: 5.47 μg/m3), ethyl acetate (summer: 2.36 μg/m3; winter: 3.51 μg/m3), and ethylbenzene (summer: 1.72 μg/m3; winter: 0.88 μg/m3) exhibited higher mean concentrations than other compounds. Printing offices and industrial facilities seem to have strong influences on the VOC levels in the center and southwest of Seoul, respectively. Diagnostic ratios indicated that the main sources of VOCs were related to local volatilization in summer and vehicular exhaust and transport from other areas in winter. Positive matrix factorization (PMF) suggested four major sources of VOCs: residential/commercial solvents for printing and painting (Factor 1); transport from other areas (Factor 2); industrial solvents for painting, manufacturing, and cleaning (Factor 3); and gasoline/diesel vehicular exhausts (Factor 4). Factors 1 and 3 were dominant in summer, and Factors 2 and 4 were dominant in winter. In conclusion, the seasonal meteorological conditions (e.g., temperature and wind patterns) were found to play an important role in the spatial distribution of VOCs in Seoul, and solvent use was a predominant source. © 2020 Elsevier Ltd
关键词	PAS PMF Seoul Source identification Vehicular exhausts VOCs
语种	英语
scopus关键词	Factorization; Solvents; Spatial distribution; Volatile organic compounds; Emission of volatile organic compounds; Environmental issues; Industrial facilities; Mean concentrations; Meteorological condition; Passive air sampler; Positive Matrix Factorization; Source identification; Urban growth; acetic acid ethyl ester; diesel fuel; ethylbenzene; gasoline; solvent; toluene; volatile organic compound; concentration (composition); environmental issue; solvent; source identification; spatial analysis; spatial distribution; toluene; volatile organic compound; volatilization; air monitoring; air sampling; Article; concentration (parameter); exhaust gas; industry; multivariate analysis; printing; priority journal; seasonal variation; South Korea; spatial analysis; summer; temperature; urban area; volatilization; wind; winter; South Korea
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248656
作者单位	Department of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, South Korea; Center for Environment, Health and Welfare Research, Korea Institute of Science and Technology (KIST), Seoul, 02792, South Korea; Department of Urban and Environmental Sociology, Helmholtz Centre for Environmental Research-UFZ, Leipzig, 04318, Germany
推荐引用方式 GB/T 7714	Kim S.-J.,Lee S.-J.,Lee H.-Y.,et al. Spatial-seasonal variations and source identification of volatile organic compounds using passive air samplers in the metropolitan city of Seoul, South Korea[J],2021,246.
APA	Kim S.-J..,Lee S.-J..,Lee H.-Y..,Park H.-J..,Kim C.-H..,...&Choi S.-D..(2021).Spatial-seasonal variations and source identification of volatile organic compounds using passive air samplers in the metropolitan city of Seoul, South Korea.ATMOSPHERIC ENVIRONMENT,246.
MLA	Kim S.-J.,et al."Spatial-seasonal variations and source identification of volatile organic compounds using passive air samplers in the metropolitan city of Seoul, South Korea".ATMOSPHERIC ENVIRONMENT 246(2021).