The characterization of ambient levoglucosan in Beijing during summertime: Dynamic variation and source contributions under strong cooking influences
文献类型：期刊论文
| 作者 | Wang, Jun1,6,7,8,9; Hu, Weiwei1,6,7,8,9 ; Pan, Tianle1,6,7,8,9; Wang, Yingkun9; Chen, Wei1,6,7,8,9; Feng, Tingting1,6,7,8,9; Cai, Yiyu1,6,7,8,9; Tao, Zi1,6,7,8,9; Zhao, Wenhui1,6,7,8,9; Liu, Zhaoce1,6,7,8,9
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| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES
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| 出版日期 | 2025-09-01 |
| 卷号 | 155页码:205-220 |
| 关键词 | Levoglucosan Biomass burning Tracer method Cooking Chemical ionization mass spectrometer (CIMS) Online measurement |
| ISSN号 | 1001-0742 |
| DOI | 10.1016/j.jes.2024.08.029 |
| 英文摘要 | Particulate levoglucosan is an important tracer for biomass burning emission in ambient air. However, recent studies question its reliability as a biomass burning tracer in Chinese mega cities due to important contribution from potential non-biomass burning sources, such as cooking. To address this, we examined the dynamic variation and sources of levoglucosan using a chemical ionization mass spectrometer and other advanced instruments during Beijing's summer of 2021. The average mass concentration of levoglucosan and its isomer (C6H10O5) was 0.025 +/- 0.014 pg/m(3) , constituting 0.55 % +/- 0.32 % of total organic carbon (OC) in this campaign. Despite cooking emissions contributing significantly to the organic aerosol (OA, 20 %), levoglucosan and its isomers correlated more strongly with biomass-burning related tracers ( R > 0.6), black carbon (R = 0.72) and less so with cooking-related sources (R = 0.3). This indicates that levoglucosan is primarily dominated by biomass-burning emis- sions rather than cooking in Beijing's urban areas during summertime. The diurnal varia- tion of levoglucosan concentrations highlighted the importance of daytime and nocturnal biomass burning emissions during polluted periods in Beijing. Using levoglucosan as a tracer to quantify the biomass burning OC (BBOC), we found good agreement on the time series of BBOC between the tracer method and other independent source apportionment method. This reaffirms the reliability of levoglucosan as a biomass burning tracer. Biomass burn- ing contributed an average of 7 %-8 % to OC, highlighting its significant impact on Beijing's summer air quality. Our study enhances understanding of biomass burning influences on ambient aerosol in typical urban areas. (c) 2025 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001423169100001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/82690]  |
| 专题 | 有机地球化学国家重点实验室 |
| 通讯作者 | Hu, Weiwei |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Key Lab Environm Resource Utilizat & Pro, Guangzhou 510640, Peoples R China 2.Guangdong Hongkong Macau Joint Lab Collaborat Inno, Guangzhou 511443, Peoples R China 3.Jinan Univ, Inst Environm & Climate Res, Guangzhou 511443, Peoples R China 4.China Univ Geosci, Sch Environm Studies, Dept Environm Sci & Technol, Wuhan 430074, Peoples R China 5.China Univ Geosci, Sch Environm Studies, Dept Atmospher Sci, Wuhan 430074, Peoples R China 6.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Hong Kong Macao Joint Lab Environm Pollu, Guangzhou 510640, Guangdong, Peoples R China 7.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China 8.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 9.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jun,Hu, Weiwei,Pan, Tianle,et al. The characterization of ambient levoglucosan in Beijing during summertime: Dynamic variation and source contributions under strong cooking influences[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2025,155:205-220. |
| APA | Wang, Jun.,Hu, Weiwei.,Pan, Tianle.,Wang, Yingkun.,Chen, Wei.,...&Wang, Xinming.(2025).The characterization of ambient levoglucosan in Beijing during summertime: Dynamic variation and source contributions under strong cooking influences.JOURNAL OF ENVIRONMENTAL SCIENCES,155,205-220. |
| MLA | Wang, Jun,et al."The characterization of ambient levoglucosan in Beijing during summertime: Dynamic variation and source contributions under strong cooking influences".JOURNAL OF ENVIRONMENTAL SCIENCES 155(2025):205-220. |
入库方式： OAI收割
来源：广州地球化学研究所
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