气候变化领域集成服务门户(CCPortal): Stable carbon isotopic compositions and source apportionment of the carbonaceous components in PM2.5 in Taiyuan, China

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DOI	10.1016/j.atmosenv.2021.118601
	Stable carbon isotopic compositions and source apportionment of the carbonaceous components in PM2.5 in Taiyuan, China
	Liu X.; Li X.; Bai H.; Mu L.; Li Y.; Zhang D.
发表日期	2021
ISSN	1352-2310
卷号	261
英文摘要	To determine the stable carbon isotopic compositions (δ13C) and source apportionment of carbonaceous components in Taiyuan, PM2.5 samples were collected using medium flow samplers (TH-150C) during 4 months in 2014. The δ13C values of organic carbon (OC) and elemental carbon (EC) in PM2.5 were determined using an MAT-251 gas mass spectrometer with a dual inlet system. Moreover, δ13CEC values from industrial and domestic coal combustion were synchronously measured. In March, May, August, and December, the mean δ13COC values were −23.9 ± 0.9‰, −25.2 ± 0.2‰, −25.3 ± 0.6‰, and −22.9 ± 1.0‰, respectively; the corresponding δ13CEC values were −23.8 ± 0.8‰, −24.2 ± 0.5‰, −25.3 ± 0.4‰, and −23.8 ± 0.3‰; and the corresponding δ13CTC values were −23.8 ± 0.7‰, −24.8 ± 0.2‰, −25.3 ± 0.4‰, and −23.2 ± 0.6‰. Notable differences were observed in temporal distributions of stable carbon isotopic compositions of OC, EC, and total carbon (TC). The heavier δ13CEC values in December and March was caused by increased coal combustion and C4 plant burning during the heating season. The δ13CEC value was heavier than the δ13COC value in May, whereas the opposite was true in December. The δ13COC value may have been changed in atmospheric reactions during secondary organic aerosols formation in May and photochemical aging in December. There was almost no difference between δ13COC and δ13CEC in March and August. Source apportionment suggest that the EC sources in Taiyuan during the 4 months were different. EC in March and December was mainly due to fossil fuels (93.8%) and C4 plant burning (6.2%), EC in May was mainly affected by industrial coal combustion (50.0%) and vehicle exhaust (50.0%), and EC in August was the comprehensive result of fossil fuels (63.6%) and charcoal burning (36.4%). These results may enhance understanding of the sources of carbonaceous components in fine particles and may provide valuable data for environmental management. © 2021 Elsevier Ltd
关键词	Carbonaceous aerosol Photochemical aging Secondary organic aerosols formation Source apportionment Stable carbon isotope
语种	英语
scopus关键词	Aerosols; Coal; Coal combustion; Organic carbon; $+13$/C; Carbon isotopic composition; Carbonaceous aerosol; Elemental carbon; Organics; Photochemical aging; Secondary organic aerosol formation; Source apportionment; Stable carbon; Stable carbon isotopes; Isotopes; carbon; carbon 13; charcoal; coal; elemental carbon; fossil fuel; organic carbon; unclassified drug; C4 plant; carbon isotope ratio; charcoal; environmental management; fossil fuel; organic carbon; particulate matter; source apportionment; air monitoring; air pollutant; air pollution; air quality; air temperature; ambient air; analytical parameters; Article; atmosphere; atmospheric particulate matter; C4 plant; carbon fixation; carbon footprint; carbon source; chemical composition; China; combustion; controlled study; exhaust gas; fire ecology; heating; industrial area; isotope analysis; particulate matter 2.5; photochemical aging; physical chemistry; seasonal variation; secondary organic aerosol; soot; temporal analysis; total carbon; China; Shanxi; Taiyuan
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/248315
作者单位	College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan, 030024, China; College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, China
推荐引用方式 GB/T 7714	Liu X.,Li X.,Bai H.,et al. Stable carbon isotopic compositions and source apportionment of the carbonaceous components in PM2.5 in Taiyuan, China[J],2021,261.
APA	Liu X.,Li X.,Bai H.,Mu L.,Li Y.,&Zhang D..(2021).Stable carbon isotopic compositions and source apportionment of the carbonaceous components in PM2.5 in Taiyuan, China.ATMOSPHERIC ENVIRONMENT,261.
MLA	Liu X.,et al."Stable carbon isotopic compositions and source apportionment of the carbonaceous components in PM2.5 in Taiyuan, China".ATMOSPHERIC ENVIRONMENT 261(2021).