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, Fan2,7,8; Liu, Junwen2; Cheng, Zhineng1,3; Ding, Ping1,4 ; Zhu, Sanyuan1,3; Yuan, Xin2; Chen, Wei1,3; Zhang, Zhisheng5; Zong, Zheng6; Tian, Chongguo6
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| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
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| 出版日期 | 2023-08-25 |
| 卷号 | 888页码:12 |
| 关键词 | Organic carbon Dual carbon isotopes Source apportionment Aging processes |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2023.164182 |
| 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研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001024733800001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/74420]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Liu, Junwen |
| 作者单位 | 1.CAS Ctr Excellence Deep Earth Sci, Guangzhou, Peoples R China 2.Jinan Univ, Inst Environm & Climate Res, Guangzhou, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou, Peoples R China 5.Minist Environm Protect, South China Inst Environm Sci, Guangzhou, Peoples R China 6.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Peoples R China 7.Univ Bern, Dept Chem Biochem & Pharmaceut Sci, Bern, Switzerland 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：广州地球化学研究所
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