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
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
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
2023-08-25
Volume888Pages:12
KeywordOrganic carbon Dual carbon isotopes Source apportionment Aging processes
DOI10.1016/j.scitotenv.2023.164182
Corresponding AuthorLiu, Junwen(liu.junwen@jnu.edu.cn)
AbstractOrganic 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.
Funding OrganizationNational Natural Science Foundation of China (NSFC) ; China Scholarship Council (CSC)
Indexed BySCI
Language英语
WOS KeywordPEARL RIVER DELTA ; ATMOSPHERIC FINE PARTICLES ; SOURCE APPORTIONMENT ; CHEMICAL CHARACTERISTICS ; ANTHROPOGENIC EMISSIONS ; MASS-SPECTROMETRY ; CHINA INSIGHTS ; BIOMASS ; RADIOCARBON ; PARTICULATE
WOS Research AreaEnvironmental Sciences & Ecology
WOS IDWOS:001024733800001
Citation statistics
Document Type期刊论文
Identifierhttp://ir.yic.ac.cn/handle/133337/33358
Collection中国科学院海岸带环境过程与生态修复重点实验室
中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
Corresponding AuthorLiu, Junwen
Affiliation1.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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