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Characterization of PM2.5 in Guangzhou, China: uses of organic markers for supporting source apportionment
Wang, Jingzhi1,2; Ho, Steven Sai Hang1,3; Ma, Shexia4; Cao, Junji1,2,5; Dai, Wenting1,2; Liu, Suixin1,2; Shen, Zhenxing5; Huang, Rujin1,2,6; Wang, Gehui1,2; Han, Yongming1,2
2016-04-15
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
Volume550Issue:2016Pages:961-971
SubtypeArticle
AbstractOrganic carbon (OC), elemental carbon (EC), and non-polar organic compounds including n-alkanes (n-C-14-n-C-40), polycyclic aromatic hydrocarbons (PAHs), phthalate esters (PAEs) and hopanes were quantified in fine particulate (PM2.5), which were collected in urban area of Guangzhou, China in winter and summer in 2012/2013. The pollutants levels were well comparable with the data obtained in previous studies in Pearl River Delta (PRD) region but much lower than most northern Chinese megacities. The contribution of EC to PM2.5 and OC EC ratio suggest that the pollution sources were relatively consistent in GZ between the two seasons. Benzo[a]pyrene (BaP) was the most abundant PAHs, which were 4.9 and 1.0 ng/m(3) on average, accounting for 10.7% and 9.1% to the total quantified PAHs in winter and summer, respectively. The total concentrations of PAEs ranged from 289.1 to 2435 ng/m(3) and from 102.4 to 1437 ng/m(3), respectively, in winter and summer. Di-n-butyl phthalate (DBP) was the most dominant PAEs. The ambient levels of PAEs could be partly attributed to the widespread uses of the household products, municipal garbage compressing, sewage, and external painting material on the building. Source apportionment for OC with chemical mass balance (CMB) model demonstrated coal combustion, vehicle emission, cooking, and secondary organic compounds (SOC) formation were the four major pollution sources. Both of the indices of n-alkanes and diagnostic PAHs ratios support that anthropogenic sources such as vehicle emission and coal combustion were the significant pollution sources with some extents from epicuticular waxes by terrestrial plants. The ratio of hopanes to EC proved the influences from vehicle emission, and displayed a certain degree of the air aging in the Guangzhou ambient air. (C) 2016 Elsevier B.V. All rights reserved.
KeywordOc/ec Organic Markers Phthalate Esters Guangzhou Source Identification
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.scitotenv.2016.01.138
WOS KeywordPOLYCYCLIC AROMATIC-HYDROCARBONS ; PEARL RIVER DELTA ; FINE PARTICULATE MATTER ; PORT THERMAL-DESORPTION ; PHTHALATE-ESTERS PAES ; N-ALKANES ; CARBONACEOUS AEROSOLS ; ELEMENTAL CARBON ; AIR-POLLUTION ; CHEMICAL-COMPOSITION
Indexed BySCI
Language英文
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000371226700095
Citation statistics
Cited Times:33[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5792
Collection粉尘与环境研究室
Affiliation1.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol SKLLQG, Xian 710061, Peoples R China
3.Univ Nevada, Desert Res Inst, Div Atmospher Sci, Reno, NV 89506 USA
4.South China Inst Environm Sci, Guangzhou, Guangdong, Peoples R China
5.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China
6.Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland
Recommended Citation
GB/T 7714
Wang, Jingzhi,Ho, Steven Sai Hang,Ma, Shexia,et al. Characterization of PM2.5 in Guangzhou, China: uses of organic markers for supporting source apportionment[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2016,550(2016):961-971.
APA Wang, Jingzhi.,Ho, Steven Sai Hang.,Ma, Shexia.,Cao, Junji.,Dai, Wenting.,...&Han, Yongming.(2016).Characterization of PM2.5 in Guangzhou, China: uses of organic markers for supporting source apportionment.SCIENCE OF THE TOTAL ENVIRONMENT,550(2016),961-971.
MLA Wang, Jingzhi,et al."Characterization of PM2.5 in Guangzhou, China: uses of organic markers for supporting source apportionment".SCIENCE OF THE TOTAL ENVIRONMENT 550.2016(2016):961-971.
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