Characteristics and Source Identification of Polycyclic Aromatic Hydrocarbons and n-Alkanes in PM2.5 in Xiamen

doi:10.4209/aaqr.2017.11.0493

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	Characteristics and Source Identification of Polycyclic Aromatic Hydrocarbons and n-Alkanes in PM2.5 in Xiamen
	Wang, Linlin 2; Zhu, Chongshu 1,5; Wang, Qiyuan 1,5; Ho, Steven Sai Hang 1,3,5; Li, Lijuan 1,4,5; Cao, Junji 1,5; Zhang, Ningning 1,5
刊名	AEROSOL AND AIR QUALITY RESEARCH
	2018-07-01
卷号	18 期号:7 页码:1673-1683
关键词	Pm2.5 Pahs And N-alkanes Source Characterization Health Effects Xiamen
DOI	10.4209/aaqr.2017.11.0493
文献子类	Article
英文摘要	PM2.5 samples were collected to characterize the organic compounds of polycyclic aromatic hydrocarbons (PAHs) and n-alkanes in Xiamen, China, in 2013. The concentrations of PM2.5, PAHs and n-alkanes were 55.53 mu g m(-3) and 22.14 mu g m(-3), 15.73 +/- 6.25 ng m(-3) and 5.65 +/- 3.73 ng m(-3), and 148.57 +/- 36.84 ng m(-3) and 97.53 +/- 67.46 ng m(-3) in winter and summer, respectively, demonstrating higher pollutant levels in wintertime. Benzo[e] pyrene (BeP) was the most abundant PAH, accounting for 32% and 26% of the total quantified PAHs in winter and summer, respectively, followed by coronene (Cor) and phenanthrene (Phe). 5-ring PAHs were the most dominant group, contributing 50.8% and 44.1% to the total quantified PAHs in winter and summer, respectively. Two peaks were exhibited by the homologue distributions of n-alkanes, and the dominant components were enriched in the high molecular weight fraction. Meteorological parameters had a stronger impact on the atmospheric PAH levels in summer than winter, and the most significant parameter was relative humidity (RH), followed by temperature. The diagnostic ratios indicated that PAHs in Xiamen were mainly contributed by petroleum combustion in the two seasons and the concentrations of n-alkanes were mainly influenced by anthropogenic sources. The annual values of the benzo[ a] pyrene (BaP) equivalent concentration and incremental lifetime cancer risk (ILCR) were 0.83 +/- 0.63 ng m(-3) and 7.17 x 10(-5) in winter and 1.11 x 10(-4) ng m(-3) and 3.29 x 10(-5) in summer, respectively. The findings illustrated that the overall exposure risk to PM2.5-bound PAHs did not trigger an alert in Xiamen, but higher risks in winter were still shown to exist.
WOS关键词	PORT THERMAL-DESORPTION ; URBAN ENVIRONMENTS ; ORGANIC-COMPOUNDS ; CHEMICAL-COMPOSITIONS ; ATMOSPHERIC AEROSOLS ; SEASONAL-VARIATION ; OXYGENATED PAHS ; RISK ASSESSMENT ; HEALTH-RISK ; AMBIENT AIR
WOS研究方向	Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:000435943400013
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5099]
专题	地球环境研究所_粉尘与环境研究室
通讯作者	Zhang, Ningning
作者单位	1.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China 2.Binzhou Univ, Coll Architectural Engn, Binzhou 256603, Peoples R China 3.Desert Res Inst, Div Atmospher Sci, Reno, NV 89512 USA 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Peoples R China
推荐引用方式 GB/T 7714	Wang, Linlin,Zhu, Chongshu,Wang, Qiyuan,et al. Characteristics and Source Identification of Polycyclic Aromatic Hydrocarbons and n-Alkanes in PM2.5 in Xiamen[J]. AEROSOL AND AIR QUALITY RESEARCH,2018,18(7):1673-1683.
APA	Wang, Linlin.,Zhu, Chongshu.,Wang, Qiyuan.,Ho, Steven Sai Hang.,Li, Lijuan.,...&Zhang, Ningning.(2018).Characteristics and Source Identification of Polycyclic Aromatic Hydrocarbons and n-Alkanes in PM2.5 in Xiamen.AEROSOL AND AIR QUALITY RESEARCH,18(7),1673-1683.
MLA	Wang, Linlin,et al."Characteristics and Source Identification of Polycyclic Aromatic Hydrocarbons and n-Alkanes in PM2.5 in Xiamen".AEROSOL AND AIR QUALITY RESEARCH 18.7(2018):1673-1683.