气候变化领域集成服务门户(CCPortal): Black carbon and size-segregated elemental carbon; organic carbon compositions in a megacity: a case study for Istanbul

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DOI	10.1007/s11869-020-00839-1
	Black carbon and size-segregated elemental carbon; organic carbon compositions in a megacity: a case study for Istanbul
	Kuzu S.L.; Yavuz E.; Akyüz E.; Saral A.; Akkoyunlu B.O.; Özdemir H.; Demir G.; Ünal A.
发表日期	2020
ISSN	18739318
起始页码	827
结束页码	837
卷号	13 期号:7
英文摘要	In this study, black carbon (BC), particulate matter (PM), nitrogen oxides (NOx), and sulphur dioxide (SO2) were monitored between May 2019 and February 2020. During this sampling period, size-segregated particle samples were collected by a high-volume cascade impactor, once a week. Elemental carbon (EC) and organic carbon (OC) were investigated on the size-segregated particles. The study was carried out at Esenler district of Istanbul. Main sources in the vicinity of the sampling area are Central Coach Station of Istanbul, residential buildings, small-scale industrial facilities, and O-1 and O-2 highway connection. The average BC concentration was 2763 ± 1974 ng/m3. PM10 and PM2.5 concentrations were 38.2 ± 17.4 and 21.5 ± 12.4 μg/m3, respectively. BC comprised 12.8% and 7.2% of PM2.5 and PM10, respectively. Diurnal variation of BC had a similar trend with NO2 concentrations, which showed peak concentrations during rush hours. BC had high Pearson correlation coefficients with NO, NO2, and PM2.5. The geographical position of possible emission sources was estimated through conditional probability function. The Central Coach Station of Istanbul had the highest geographical possibility for BC sources. EC and OC exhibited bimodal size distribution. The coarse mode peak was at 0.95–1.5-μm size bin for OC, whilst it was at 1.5–3-μm size bin for EC. Since EC and BC exhibit the same origin with different measurement principles, we concluded that resuspension of road dust also contributed ambient BC concentrations. © 2020, Springer Nature B.V.
英文关键词	Aerosol size distribution; Black carbon; Megacity; OC-EC
scopus关键词	black carbon; concentration (composition); dust; elemental carbon; megacity; organic carbon; particle size; particulate matter; pollutant source; spatiotemporal analysis; Istanbul [Turkey]; Turkey
来源期刊	Air Quality, Atmosphere and Health
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/176875
作者单位	Civil Engineering Faculty, Environmental Engineering Department, Yildiz Technical University, Davutpaşa, Esenler, Istanbul, 34220, Turkey; Istanbul Technical University, Eurasia Institute of Earth Sciences, Istanbul, 34467, Turkey; Department of Physics, Marmara University, Göztepe, Istanbul, 34722, Turkey; Department of Civil Engineering, Bahcesehir University, Besiktas, Istanbul, 34353, Turkey; Occupational Health and Safety Department, University of Health Sciences, Istanbul, 34668, Turkey
推荐引用方式 GB/T 7714	Kuzu S.L.,Yavuz E.,Akyüz E.,et al. Black carbon and size-segregated elemental carbon; organic carbon compositions in a megacity: a case study for Istanbul[J],2020,13(7).
APA	Kuzu S.L..,Yavuz E..,Akyüz E..,Saral A..,Akkoyunlu B.O..,...&Ünal A..(2020).Black carbon and size-segregated elemental carbon; organic carbon compositions in a megacity: a case study for Istanbul.Air Quality, Atmosphere and Health,13(7).
MLA	Kuzu S.L.,et al."Black carbon and size-segregated elemental carbon; organic carbon compositions in a megacity: a case study for Istanbul".Air Quality, Atmosphere and Health 13.7(2020).