Knowledge Management System Of Guangzhou Institute of Geochemistry，CAS
Feng, Tingting1,2,3,4,5; Wang, Yingkun1,2,3,4,5; Hu, Weiwei1,2,4,5,6 ; Zhu, Ming1,2,3,4,5; Song, Wei1,2,4,5; Chen, Wei1,2,3,4,5; Sang, Yanyan7; Fang, Zheng1,2,3,4,5; Deng, Wei1,2,3,4,5; Fang, Hua1,2,3,4,5,14; Yu, Xu1,2,3,4,5; Wu, Cheng8; Yuan, Bin9; Huang, Shan9; Shao, Min9; Huang, Xiaofeng10; He, Lingyan10; Lee, Young Ro11; Huey, Lewis Gregory11; Canonaco, Francesco12,13; Prevot, Andre S. H.12; Wang, Xinming1,2,3,4,5
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| Impact of aging on the sources, volatility, and viscosity of organic aerosols in Chinese outflows | |
| Source Publication | ATMOSPHERIC CHEMISTRY AND PHYSICS
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| ISSN | 1680-7316 |
| 2023-01-16 | |
| Volume | 23Issue:1Pages:611-636 |
| DOI | 10.5194/acp-23-611-2023 |
| Language | 英语 |
| WOS Research Area | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| Abstract | To investigate the impact of aging on the sources, volatility, and viscosity of organic aerosol (OA) in Chinese outflows, a high-resolution time-of-flight aerosol mass spectrometer (HR-AMS) coupled with a thermodenuder (TD) was deployed in the spring of 2018 in Dongying, which is a regional receptor site of metropolitan emissions in the North China Plain (NCP). The average mass concentration of PM1 is 31.5 +/- 22.7 mu gm(-3), which is mainly composed of nitrate (33 %) and OA (25 %). The source apportionment results show that the OA is mainly contributed by oxygenated OA (OOA) from secondary sources, including background-OOA (33 %) representing a background concentration of OA (2.6 mu gm(-3)) in the NCP area, and transported-OOA (33 %) oxidized from urban emissions. The other two factors include aged hydrocarbon-liked OA (aged-HOA, 28 %) from transported vehicle emissions and biomass burning OA (BBOA, 5 %) from local open burning. The volatility of total OA (average C*=3.2x10(-4) mu gm(-3)) in this study is generally lower than that reported in previous field studies, which is mainly due to the high OA oxidation level resulting from aging processes during transport. The volatilities of OA factors follow the order of background-OOA (average C*=2.7x10(-5) mu gm(-3)) < transported-OOA (3.7x10(-4)mu gm(-3))< aged-HOA (8.1x10(-4)mu gm(-3))< BBOA (0.012 mu gm(-3)). Extremely low volatilities in ambient air indicate that oligomers may exist in aged plumes. The viscosity estimation suggests that the majority of ambient OA in this study behaves as semisolid (60 %), liquifies at higher relative humidity (RH) (21 %), and solidifies (19 %) during noon when the RH is low and the oxidation level is high. Finally, the estimated mixing time of molecules in 200 nm OA varies dramatically from minutes at night to years in the afternoon, emphasizing the need to consider its dynamic kinetic limits when modeling OA. In general, the overall results of this study improve our understanding of the impact of aging on OA volatility and viscosity. |
| WOS ID | WOS:000916534900001 |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.gig.ac.cn/handle/344008/72461 |
| Collection | 有机地球化学国家重点实验室 |
| Corresponding Author | Hu, Weiwei |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 2.CAS Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci Univ, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Guangdong Hong Kong Macao Joint Lab Environm Pollu, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China 5.Chinese Acad Sci, Guangdong Prov Key Lab Environm Protect & Resource, Guangzhou 510640, Peoples R China 6.Shanghai Acad Environm Sci, State Environm Protect Key Lab Format & Prevent Ur, Shanghai 200233, Peoples R China 7.Taian Environm Protect Bur, Tai An 271000, Shandong, Peoples R China 8.Jinan Univ, Inst Mass Spectrometry & Atmospher Environm, Guangzhou 510632, Peoples R China 9.Jinan Univ, Inst Environm & Climate Res, Guangzhou 511443, Peoples R China 10.Peking Univ Shenzhen Grad Sch, Sch Environm & Energy, Key Lab Urban Habitat Environm Sci & Technol, Key Lab Urban Habitat Environm Sci & Technol, Shenzhen 518055, Peoples R China 11.Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA 12.Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland 13.Datalystica Ltd, Pk InnovAARE, CH-5234 Villigen, Switzerland 14.Anhui Normal Univ, Sch Ecol & Environm, Wuhu 241000, Anhui, Peoples R China |
| Recommended Citation GB/T 7714 | Feng, Tingting,Wang, Yingkun,Hu, Weiwei,et al. Impact of aging on the sources, volatility, and viscosity of organic aerosols in Chinese outflows[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2023,23(1):611-636. |
| APA | Feng, Tingting.,Wang, Yingkun.,Hu, Weiwei.,Zhu, Ming.,Song, Wei.,...&Wang, Xinming.(2023).Impact of aging on the sources, volatility, and viscosity of organic aerosols in Chinese outflows.ATMOSPHERIC CHEMISTRY AND PHYSICS,23(1),611-636. |
| MLA | Feng, Tingting,et al."Impact of aging on the sources, volatility, and viscosity of organic aerosols in Chinese outflows".ATMOSPHERIC CHEMISTRY AND PHYSICS 23.1(2023):611-636. |
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