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Characteristics and Source Identification of Polycyclic Aromatic Hydrocarbons and n-Alkanes in PM2.5 in Xiamen
Zhang, Ningning1,2; Cao, Junji1,2; Li, Lijuan1,2,3; Ho, Steven Sai Hang1,2,4; Wang, Qiyuan1,2; Zhu, Chongshu1,2; Wang, Linlin5
2018-07-01
发表期刊AEROSOL AND AIR QUALITY RESEARCH
卷号18期号:7页码:1673-1683
文章类型Article
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.
关键词Pm2.5 Pahs And N-alkanes Source Characterization Health Effects Xiamen
WOS标题词Science & Technology ; Life Sciences & Biomedicine
DOI10.4209/aaqr.2017.11.0493
关键词[WOS]PORT THERMAL-DESORPTION ; URBAN ENVIRONMENTS ; ORGANIC-COMPOUNDS ; CHEMICAL-COMPOSITIONS ; ATMOSPHERIC AEROSOLS ; SEASONAL-VARIATION ; OXYGENATED PAHS ; RISK ASSESSMENT ; HEALTH-RISK ; AMBIENT AIR
收录类别SCI
语种英语
WOS研究方向Environmental Sciences & Ecology
WOS类目Environmental Sciences
WOS记录号WOS:000435943400013
引用统计
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5099
专题粉尘与环境研究室
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.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Desert Res Inst, Div Atmospher Sci, Reno, NV 89512 USA
5.Binzhou Univ, Coll Architectural Engn, Binzhou 256603, Peoples R China
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GB/T 7714
Zhang, Ningning,Cao, Junji,Li, Lijuan,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 Zhang, Ningning.,Cao, Junji.,Li, Lijuan.,Ho, Steven Sai Hang.,Wang, Qiyuan.,...&Wang, Linlin.(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 Zhang, Ningning,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.
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