The roles of aqueous-phase chemistry and photochemical oxidation in oxygenated organic aerosols formation
文献类型：期刊论文
| 作者 | Zhan, Bixin7,8; Zhong, Haobin4,5,6; Chen, Hui7; Chen, Yunqian7; Li, Xiang7; Wang, Lin7; Wang, Xinke3; Mu, Yujing2; Huang, Ru-Jin5,6; George, Christian3 |
| 刊名 | ATMOSPHERIC ENVIRONMENT
 |
| 出版日期 | 2021-12-01 |
| 卷号 | 266页码:9 |
| 关键词 | ToF-ACSM The north China Plain Fine particles Real-time measurements Mass-spectrometry Organic aerosol Chemical composition |
| ISSN号 | 1352-2310 |
| DOI | 10.1016/j.atmosenv.2021.118738 |
| 通讯作者 | Chen, Hui(hui_chen@fudan.edu.cn) ; Chen, Jianmin(jmchen@fudan.edu.cn) |
| 英文摘要 | The formation mechanism and evolution process of secondary organic aerosol (SOA) remain poorly understood due to measurement uncertainties and chemical complexities. Here, we present the characterization of non-refractory fine particles (NR-PM2.5) analyzed by means of a time-of-flight ACSM (ToF-ACSM) at a rural site in the North China Plain during winter. Our results show that air quality in rural areas was heavily polluted by primary organic aerosols (POA), which accounted for 83% of total organic aerosol (OA). The oxygenated organic aerosols (OOA) were mainly generated from local emissions. As pieces of evidence, firstly, less-oxidized OOA (LO-OOA) had good correlations with primary species like biomass burning OA (BBOA) (R2 = 0.54), EC (R2 = 0.46), and chloride (R2 = 0.46), implying LO-OOA was formed with the POA emission processes; secondly, there was a significant increase in OOA concentration after sunrise, indicating a lot of local generation during the daytime; thirdly, the potential source region of OOA was restricted in that of POA, implying that OOAs were converted from where primary emission exists. The formation processes of LO-OOA and more-oxidized OOA (MO-OOA) are different. Aqueous-phase chemistry had a dominant effect on the formation of LO-OOA due to the better correlation between aerosol liquid water content (ALWC) with LO-OOA (R2 = 0.54) than MO-OOA (R2 = 0.15). In comparison, both aqueous -phase and photochemical processes acted on the MO-OOA formation, when odd oxygen (Ox = O3+NO2) was low (Ox < 35 ppb), MO-OOA concentration increased with the increment of ALWC. However, at high Ox level (Ox > 35 ppb), photochemical oxidation played an essential role in MO-OOA formation. |
| WOS关键词 | NORTH CHINA PLAIN ; ATMOSPHERIC FINE PARTICLES ; SOURCE APPORTIONMENT ; CHEMICAL-COMPOSITION ; PARTICULATE MATTER ; SECONDARY FORMATION ; MULTILINEAR ENGINE ; SUBMICRON AEROSOLS ; COAL COMBUSTION ; HAZE POLLUTION |
| 资助项目 | Ministry of Science and Technology of China, China[2016YFC0202700] ; National Natural Science Founda-tion of China, China[91743202] ; National Natural Science Founda-tion of China, China[41805091] ; National Natural Science Founda-tion of China, China[21806020] ; National research program for key issues in air pollution control, China[DQGG0103] ; National research program for key issues in air pollution control, China[DQGG0102] ; Marie Skodowska-Curie Actions, European Union[690958-MARSU-RISE-2015] |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000715052900002 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | Ministry of Science and Technology of China, China ; National Natural Science Founda-tion of China, China ; National research program for key issues in air pollution control, China ; Marie Skodowska-Curie Actions, European Union |
| 源URL | [http://ir.ieecas.cn/handle/361006/17198]  |
| 专题 | 地球环境研究所_粉尘与环境研究室 |
| 通讯作者 | Chen, Hui; Chen, Jianmin |
| 作者单位 | 1.Fudan Univ, IRDR Int Ctr Excellence Risk Interconnect & Gover, Inst Atmospher Sci, Shanghai 200438, Peoples R China 2.Univ Chinese Acad Sci, Inst Ecoenvironm, Beijing 100080, Peoples R China 3.Univ Lyon, Univ Claude Bernard Lyon 1, IRCELYON, CNRS, F-69626 Villeurbanne, France 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Key Lab Aerosol Chem & Phys, Inst Earth Environm, Xian 710061, Peoples R China 6.Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, State Key Lab Loess & Quaternary Geol SKLLQG, Inst Earth Environm, Xian 710061, Peoples R China 7.Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Prev, Shanghai 200438, Peoples R China 8.Fudan Univ, Inst Atmospher Sci, Dept Atmospher & Ocean Sci, Shanghai 200438, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhan, Bixin,Zhong, Haobin,Chen, Hui,et al. The roles of aqueous-phase chemistry and photochemical oxidation in oxygenated organic aerosols formation[J]. ATMOSPHERIC ENVIRONMENT,2021,266:9. |
| APA | Zhan, Bixin.,Zhong, Haobin.,Chen, Hui.,Chen, Yunqian.,Li, Xiang.,...&Chen, Jianmin.(2021).The roles of aqueous-phase chemistry and photochemical oxidation in oxygenated organic aerosols formation.ATMOSPHERIC ENVIRONMENT,266,9. |
| MLA | Zhan, Bixin,et al."The roles of aqueous-phase chemistry and photochemical oxidation in oxygenated organic aerosols formation".ATMOSPHERIC ENVIRONMENT 266(2021):9. |
入库方式： OAI收割
来源：地球环境研究所
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