Seasonal Variation of Carbonaceous Species of PM2.5 in a Small City in Sichuan Basin, China

doi:10.3390/atmos11121286

	Seasonal Variation of Carbonaceous Species of PM2.5 in a Small City in Sichuan Basin, China
	Huang, Yimin 2; Zhang, Liuyi 2,3; Li, Tingzhen 2; Chen, Yang 3; Yang, Fumo 1,2,3
刊名	ATMOSPHERE
	2020-12-01
卷号	11 期号:12 页码:15
关键词	organic carbon elemental carbon Sichuan Basin secondary organic carbon biomass burning
DOI	10.3390/atmos11121286
通讯作者	Zhang, Liuyi(zhangliuyi@sanxiau.edu.cn) ; Yang, Fumo(fmyang@scu.edu.cn)
英文摘要	Organic carbon (OC) and elemental carbon (EC) concentrations were measured in daily PM2.5 samples collected over four non-consecutive months representing four seasons from 2016 to 2017 in a small city in the east of Sichuan Basin. The average concentrations of OC and EC during the study periods were observed to be 15.5 +/- 13.5 and 5.2 +/- 4.7 mu g center dot m(-3), respectively, both with the highest in winter. The OC and EC correlated well in fall and winter, implying that OC and EC were attributed to common emission sources. The estimated secondary OC (SOC) represented 37.2%, 46.7%, 26.9%, and 40.7% of the OC in spring, summer, fall, and winter, respectively. The highest concentration of SOC was found in winter, while the proportion of SOC/OC was highest in summer. Strong correlations were observed between OC vs. K+ and EC vs. K+ in fall and winter, suggesting that biomass burning was a significant source of carbonaceous aerosols. Four sources of OC and EC were resolved by the positive matrix factorization (PMF) model, including coal combustion (5.5% and 12.1%), building and road dust (19.7% and 18.1%), biomass burning (38.7% and 33.1%), and vehicle emission (36.1% and 36.7%), respectively. The potential source contribution function (PSCF) analysis signified that the main source areas of OC and EC were distributed in or nearby Wanzhou.
资助项目	Technology Commission of Chongqing Projects[cstc2018jcyjAX0236] ; Scientific and Technological Research Program of Chongqing Municipal Education Commission[KJQN202001232] ; Key Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservoir[WEPKL2019YB-01] ; Chongqing Three Gorges University project[19QN03]
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种	英语
出版者	MDPI
WOS记录号	WOS:000602235200001
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/12670]
专题	中国科学院重庆绿色智能技术研究院
通讯作者	Zhang, Liuyi; Yang, Fumo
作者单位	1.Sichuan Univ, Natl Engn Res Ctr Flue Gas Desulfurizat, Dept Environm Sci & Engn, Chengdu 610041, Peoples R China 2.Chongqing Three Gorges Univ, Key Lab Water Environm Evolut & Pollut Control Th, Wanzhou 404100, Peoples R China 3.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
推荐引用方式 GB/T 7714	Huang, Yimin,Zhang, Liuyi,Li, Tingzhen,et al. Seasonal Variation of Carbonaceous Species of PM2.5 in a Small City in Sichuan Basin, China[J]. ATMOSPHERE,2020,11(12):15.
APA	Huang, Yimin,Zhang, Liuyi,Li, Tingzhen,Chen, Yang,&Yang, Fumo.(2020).Seasonal Variation of Carbonaceous Species of PM2.5 in a Small City in Sichuan Basin, China.ATMOSPHERE,11(12),15.
MLA	Huang, Yimin,et al."Seasonal Variation of Carbonaceous Species of PM2.5 in a Small City in Sichuan Basin, China".ATMOSPHERE 11.12(2020):15.