Composition and sources of aerosol organic matter in a highly anthropogenic influenced semi-enclosed bay: Insights from excitation-emission matrix spectroscopy and isotopic evidence
文献类型：期刊论文
| 作者 | Wu, Yunchao1; Huang, Xiaoping1,2; Jiang, Zhijian1; Liu, Songlin1; Cui, Lijun1,2 |
| 刊名 | ATMOSPHERIC RESEARCH
 |
| 出版日期 | 2020 |
| 卷号 | 241页码:UNSP 104958 |
| 关键词 | Aerosol organic matter Compositions Stable isotopes (delta C-13 and delta N-15) Sources Fossil fuel combustion |
| ISSN号 | 0169-8095 |
| DOI | 10.1016/j.atmosres.2020.104958 |
| 英文摘要 | Organic matter in aerosols is an important allochthonous source of organic carbon and nitrogen in coastal waters. In this study, we investigated the constituents, sources, and formation process of organic matter in aerosols using excitation-emission matrix (EEM) spectroscopy and stable isotopes. The concentration of aerosol organic matter (AOM), including particle organic matter (POM) and water-soluble organic matter (WSOM), were higher in the northeast monsoon (NEM) season than in the southwest monsoon and typhoon (SWM) season due to the considerable contribution of organic aerosols from the Pearl River Delta (PRD), eastern mainland China and local emissions. The results of stable isotope (delta C-13 and delta N-15) combined with a MixSIAR model showed that fossil fuel combustion (vehicle exhausts and coal combustion) was the most important source of aerosol organic matter, which contributed more than 60% of the total AOM input, throughout the year. The EEM spectroscopy results indicated that protein-like and non-N-containing species were the primary components of aerosol organic matter, while highly-oxygenated species, mostly humic-like substances (HULIS), were identified only in the NEM season. The highly-oxygenated species in the NEM season may be attributed to the formation of secondary organic aerosols induced by higher ozone levels and increased organic radical through the severe pollution in this season. |
| 资助机构 | National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC) [41890852, 41906133]; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) [GML2019ZD0405]; National Program on Key Basic Research Projects of China (973 program)National Basic Research Program of China [2015CB452905, 2015CB452901] ; National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC) [41890852, 41906133]; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) [GML2019ZD0405]; National Program on Key Basic Research Projects of China (973 program)National Basic Research Program of China [2015CB452905, 2015CB452901] |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/18368]  |
| 专题 | 南海海洋研究所_中科院海洋生物资源可持续利用重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Peoples R China 2.Southern Marine Sci & Engn Guangdong Lab, Guangzhou 511458, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Yunchao,Huang, Xiaoping,Jiang, Zhijian,et al. Composition and sources of aerosol organic matter in a highly anthropogenic influenced semi-enclosed bay: Insights from excitation-emission matrix spectroscopy and isotopic evidence[J]. ATMOSPHERIC RESEARCH,2020,241:UNSP 104958. |
| APA | Wu, Yunchao,Huang, Xiaoping,Jiang, Zhijian,Liu, Songlin,&Cui, Lijun.(2020).Composition and sources of aerosol organic matter in a highly anthropogenic influenced semi-enclosed bay: Insights from excitation-emission matrix spectroscopy and isotopic evidence.ATMOSPHERIC RESEARCH,241,UNSP 104958. |
| MLA | Wu, Yunchao,et al."Composition and sources of aerosol organic matter in a highly anthropogenic influenced semi-enclosed bay: Insights from excitation-emission matrix spectroscopy and isotopic evidence".ATMOSPHERIC RESEARCH 241(2020):UNSP 104958. |
入库方式： OAI收割
来源：南海海洋研究所
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