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DOI | 10.5194/acp-19-9321-2019 |
Liquid-liquid phase separation in secondary organic aerosol particles produced from alpha-pinene ozonolysis and alpha-pinene photooxidation with/without ammonia | |
Ham, Suhan1; Babar, Zaeem Bin2; Lee, Jae Bong3; Lim, Ho-Jin2; Song, Mijung1 | |
2019-07-22 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:14页码:9321-9331 |
文章类型 | Article |
语种 | 英语 |
国家 | South Korea |
英文摘要 | Recently, liquid-liquid phase separation (LLPS) of secondary organic aerosol (SOA) particles free of inorganic salts has been intensively studied due to the importance of cloud condensation nuclei (CCN) properties. In this study, we investigated LLPS in four different types of SOA particles generated from alpha-pinene ozonolysis and alpha-pinene photooxidation in the absence and presence of ammonia (NH3). LLPS was observed in SOA particles produced from alpha-pinene ozonolysis at similar to 95.8% relative humidity (RH) and alpha-pinene ozonolysis with NH3 at similar to 95.4% RH. However, LLPS was not observed in SOA particles produced from alpha-pinene photooxidation and alpha-pinene photooxidation with NH3. Based on datasets of the average oxygen to carbon elemental ratio (O : C) for different types of SOA particles from this study and from previous studies, there appears to be a relationship between the occurrence of LLPS and the O : C of the SOA particles. When LLPS was observed, the two liquid phases were present up to similar to 100% RH. This result can help more accurately predict the CCN properties of organic aerosol particles. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000476625800001 |
WOS关键词 | RELATIVE HUMIDITIES ; CHEMICAL-COMPOSITION ; HEALTH ; NUCLEATION ; SULFATE ; DELIQUESCENCE ; DEPENDENCE ; MORPHOLOGY ; CHEMISTRY ; NITROGEN |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/185186 |
专题 | 地球科学 |
作者单位 | 1.Chonbuk Natl Univ, Dept Earth & Environm Sci, 567 Baekje Daero, Jeonju Si 54896, Jeollabuk Do, South Korea; 2.Kyungpook Natl Univ, Dept Environm Engn, 80 Daehakro, Daegu 41566, South Korea; 3.Korea Atom Energy Res Inst, Reactor Syst Safety Res Div, 989-111 Daedeok Daero, Daejeon 34057, South Korea |
推荐引用方式 GB/T 7714 | Ham, Suhan,Babar, Zaeem Bin,Lee, Jae Bong,et al. Liquid-liquid phase separation in secondary organic aerosol particles produced from alpha-pinene ozonolysis and alpha-pinene photooxidation with/without ammonia[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(14):9321-9331. |
APA | Ham, Suhan,Babar, Zaeem Bin,Lee, Jae Bong,Lim, Ho-Jin,&Song, Mijung.(2019).Liquid-liquid phase separation in secondary organic aerosol particles produced from alpha-pinene ozonolysis and alpha-pinene photooxidation with/without ammonia.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(14),9321-9331. |
MLA | Ham, Suhan,et al."Liquid-liquid phase separation in secondary organic aerosol particles produced from alpha-pinene ozonolysis and alpha-pinene photooxidation with/without ammonia".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.14(2019):9321-9331. |
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