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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

文献类型：期刊论文

作者Jiang, Fan1,6,8; Liu, Junwen1; Cheng, Zhineng2,7; Ding, Ping3,7; Zhu, Sanyuan2,7; Yuan, Xin1; Chen, Wei2,7; Zhang, Zhisheng4; Zong, Zheng5; Tian, Chongguo5
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2023-08-25
卷号888页码:12
ISSN号0048-9697
关键词Organic carbon Dual carbon isotopes Source apportionment Aging processes
DOI10.1016/j.scitotenv.2023.164182
通讯作者Liu, Junwen(liu.junwen@jnu.edu.cn)
英文摘要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.
WOS关键词PEARL RIVER DELTA ; ATMOSPHERIC FINE PARTICLES ; SOURCE APPORTIONMENT ; CHEMICAL CHARACTERISTICS ; ANTHROPOGENIC EMISSIONS ; MASS-SPECTROMETRY ; CHINA INSIGHTS ; BIOMASS ; RADIOCARBON ; PARTICULATE
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001024733800001
资助机构National Natural Science Foundation of China (NSFC) ; China Scholarship Council (CSC)
源URL[http://ir.yic.ac.cn/handle/133337/33357]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
烟台海岸带研究所_近岸生态与环境实验室
通讯作者Liu, Junwen
作者单位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.CAS Ctr Excellence Deep Earth Sci, Guangzhou, Peoples R China
8.Univ Bern, Oeschger Ctr Climate Change Res, Bern, Switzerland
推荐引用方式
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.

入库方式： OAI收割

来源：烟台海岸带研究所

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