Knowledge Management System Of Guangzhou Institute of Geochemistry，CAS
Yao, Yinxi1; Zhang, Yingyi1; Song, Junwei2; Yuan, Qi1; Wang, Shan1; Li, Xiaoying1; Zhang, Yuqing3; Ding, Xiang3 ; Xu, Weihai4; Su, Xiang4; Lai, Senchao1
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| Chemical characterization of marine aerosols from two cruises over the South China Sea: Importance of biomass burning and secondary formation | |
| Source Publication | SCIENCE OF THE TOTAL ENVIRONMENT
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| ISSN | 0048-9697 |
| 2023-04-01 | |
| Volume | 867Pages:10 |
| DOI | 10.1016/j.scitotenv.2023.161551 |
| Language | 英语 |
| WOS Research Area | Environmental Sciences & Ecology |
| Abstract | Total suspended particle (TSP) samples were collected during June-July 2015 in the northern South China Sea (NSCS) and August-September 2016 in the western South China Sea (WSCS). Water-soluble ions (WSIs), organic carbon (OC), elemental carbon (EC), and organic compounds were measured. The average concentrations of WSIs, OC, EC and or-ganic compounds were 19.4 +/- 10.9 mu g m-3, 2.48 +/- 1.54 mu gC m-3, 0.31 +/- 0.25 mu gC m-3 and 789 +/- 217 ng m-3 in the NSCS, and were 10.2 +/- 4.71 mu g m-3, 1.76 +/- 1.82 mu gC m-3, 0.43 +/- 0.32 mu gC m-3 and 781 +/- 342 ng m-3 in the WSCS. In both cruises, sea salt ions (Na+ and Cl-) and secondary inorganic ions (SO42-, NO3 -, and NH4+) were the main species of WSIs, accounting for 54.0 % and 43.6 % in the NSCS, and for 35.0 % and 54.0 % in the WSCS. The secondary products (dicarboxylic acids and aromatic acids) (NSCS: 73.3 %; WSCS: 73.9 %) and saccharides (NSCS: 19.0 %; WSCS: 18.0 %) accounted large fractions of organic compounds in aerosol particles over the SCS. These results suggest sea salt emissions and secondary formation are the main sources of the aerosols over the SCS in summer. The positive correlations between the biomass burning tracers (nss-K+ and levoglucosan) and OC as well as organic com-pounds indicated that biomass burning from nearby continents was also an important source of organic aerosols over the SCS. Based on back-trajectory analysis and satellite fire spots, Indochina Peninsula and China were proposed as the main continental source areas of non-sea salt WSIs and organic compounds. Our results highlight the significant con-tribution of continental outflow especially biomass burning and photochemical secondary oxidation to the organic compositions of aerosol particles over the SCS in summertime. |
| Keyword | Terrestrial out flow Secondary organic aerosols Biomass burning Aerosol composition South China Sea |
| WOS ID | WOS:000920211300001 |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.gig.ac.cn/handle/344008/72452 |
| Collection | 有机地球化学国家重点实验室 |
| Corresponding Author | Song, Junwei; Lai, Senchao |
| Affiliation | 1.South China Univ Technol, Sch Environm & Energy, Key Lab Pollut Control & Ecosyst Restorat Ind Clus, Minist Educ, Guangzhou 510006, Peoples R China 2.Karlsruhe Inst Technol, Inst Meteorol & Climate Res, Hermann von Helmholtz Pl 1, Eggenstein Leopoldshafen, Germany 3.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou, Peoples R China 4.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Ocean & Marginal Sea Geol, Guangzhou, Peoples R China |
| Recommended Citation GB/T 7714 | Yao, Yinxi,Zhang, Yingyi,Song, Junwei,et al. Chemical characterization of marine aerosols from two cruises over the South China Sea: Importance of biomass burning and secondary formation[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,867:10. |
| APA | Yao, Yinxi.,Zhang, Yingyi.,Song, Junwei.,Yuan, Qi.,Wang, Shan.,...&Lai, Senchao.(2023).Chemical characterization of marine aerosols from two cruises over the South China Sea: Importance of biomass burning and secondary formation.SCIENCE OF THE TOTAL ENVIRONMENT,867,10. |
| MLA | Yao, Yinxi,et al."Chemical characterization of marine aerosols from two cruises over the South China Sea: Importance of biomass burning and secondary formation".SCIENCE OF THE TOTAL ENVIRONMENT 867(2023):10. |
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