Knowledge Management System Of Guangzhou Institute of Geochemistry，CAS
Jiang, Fan1,6,7; Liu, Junwen1; Cheng, Zhineng2,8; Ding, Ping3,8 ; Zhu, Sanyuan2,8; Yuan, Xin1; Chen, Wei2,8; Zhang, Zhisheng4; Zong, Zheng5; Tian, Chongguo5; Hu, Weiwei2,8; Zheng, Junyu1; Szidat, Soenke6,7; Li, Jun2,8; Zhang, Gan2,8
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| Quantitative evaluation for the sources and aging processes of organic aerosols in urban Guangzhou: Insights from a comprehensive method of dual-carbon isotopes and macro tracers | |
| Source Publication | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| ISSN | 0048-9697 |
| 2023-08-25 | |
| Volume | 888Pages:12 |
| DOI | 10.1016/j.scitotenv.2023.164182 |
| Language | 英语 |
| WOS Research Area | Environmental Sciences & Ecology |
| Abstract | Organic carbon aerosol (OC) is a pivotal component of PM2.5 in the atmospheric environment, yet its emission sources and atmospheric behaviors remain poorly constrained in many regions. In this study, a comprehensive method based on the combination of dual-carbon isotopes (13C and 14C) and macro tracers was employed in the PRDAIO campaign performed in the megacity of Guangzhou, China. The 14C analysis showed that 60 & PLUSMN; 9 % of OC during the sampling campaign was associated with non-fossil sources such as biomass burning activities and biogenic emissions. It should be noted that this non-fossil contribution in OC would significantly decrease when the air masses came from the east-ern cities. Overall, we found that non-fossil secondary OC (SOCNF) was the largest contributor (39 & PLUSMN; 10 %) to OC, followed by fossil secondary OC (SOCFF: 26 & PLUSMN; 5 %), fossil primary OC (POCFF: 14 & PLUSMN; 6 %), biomass burning OC (OCbb: 13 & PLUSMN; 6 %) and cooking OC (OCck: 8 & PLUSMN; 5 %). Also, we established the dynamic variation of 13C as a function of aged OC and the volatile organic compounds (VOCs) oxidized OC to explore the impact of aging processes on OC. Our pilot results showed that atmospheric aging was highly sensitive to the emission sources of seed OC particles, with a higher aging degree (86 & PLUSMN; 4 %) when more non-fossil OC particles were transferred from the northern PRD. |
| Keyword | Organic carbon Dual carbon isotopes Source apportionment Aging processes |
| WOS ID | WOS:001024733800001 |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.gig.ac.cn/handle/344008/74421 |
| Collection | 有机地球化学国家重点实验室 |
| Corresponding Author | Liu, Junwen |
| Affiliation | 1.Jinan Univ, Inst Environm & Climate Res, Guangzhou, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou, Peoples R China 4.Minist Environm Protect, South China Inst Environm Sci, Guangzhou, Peoples R China 5.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Peoples R China 6.Univ Bern, Dept Chem Biochem & Pharmaceut Sci, Bern, Switzerland 7.Univ Bern, Oeschger Ctr Climate Change Res, Bern, Switzerland 8.CAS Ctr Excellence Deep Earth Sci, Guangzhou, Peoples R China |
| Recommended Citation GB/T 7714 | Jiang, Fan,Liu, Junwen,Cheng, Zhineng,et al. Quantitative evaluation for the sources and aging processes of organic aerosols in urban Guangzhou: Insights from a comprehensive method of dual-carbon isotopes and macro tracers[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,888:12. |
| APA | Jiang, Fan.,Liu, Junwen.,Cheng, Zhineng.,Ding, Ping.,Zhu, Sanyuan.,...&Zhang, Gan.(2023).Quantitative evaluation for the sources and aging processes of organic aerosols in urban Guangzhou: Insights from a comprehensive method of dual-carbon isotopes and macro tracers.SCIENCE OF THE TOTAL ENVIRONMENT,888,12. |
| MLA | Jiang, Fan,et al."Quantitative evaluation for the sources and aging processes of organic aerosols in urban Guangzhou: Insights from a comprehensive method of dual-carbon isotopes and macro tracers".SCIENCE OF THE TOTAL ENVIRONMENT 888(2023):12. |
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