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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
Source PublicationAEROSOL AND AIR QUALITY RESEARCH
Volume18Issue:7Pages:1673-1683
SubtypeArticle
AbstractPM2.5 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.
KeywordPm2.5 Pahs And N-alkanes Source Characterization Health Effects Xiamen
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.4209/aaqr.2017.11.0493
WOS KeywordPORT THERMAL-DESORPTION ; URBAN ENVIRONMENTS ; ORGANIC-COMPOUNDS ; CHEMICAL-COMPOSITIONS ; ATMOSPHERIC AEROSOLS ; SEASONAL-VARIATION ; OXYGENATED PAHS ; RISK ASSESSMENT ; HEALTH-RISK ; AMBIENT AIR
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000435943400013
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Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5099
Collection粉尘与环境研究室
Corresponding AuthorZhang, Ningning
Affiliation1.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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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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