Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-4673-2018 |
Ozonolysis of alpha-phellandrene - Part 2: Compositional analysis of secondary organic aerosol highlights the role of stabilised Criegee intermediates | |
Mackenzie-Rae, Felix A.1; Wallis, Helen J.2; Rickard, Andrew R.2,3; Pereira, Kelly L.2; Saunders, Sandra M.1; Wang, Xinming4,5,6; Hamilton, Jacqueline F.2 | |
2018-04-06 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:7页码:4673-4693 |
文章类型 | Article |
语种 | 英语 |
国家 | Australia; England; Peoples R China |
英文摘要 | The molecular composition of the water-soluble fraction of secondary organic aerosol (SOA) generated from the ozonolysis of alpha-phellandrene is investigated for the first time using high-pressure liquid chromatography coupled to high-resolution quadrupole-Orbitrap tandem mass spectrometry. In total, 21 prominent products or isomeric product groups were identified using both positive and negative ionisation modes, with potential formation mechanisms discussed. The aerosol was found to be composed primarily of polyfunctional first-and second-generation species containing one or more carbonyl, acid, alcohol and hydroperoxide functionalities, with the products significantly more complex than those proposed from basic gas-phase chemistry in the companion paper (Mackenzie-Rae et al., 2017). Mass spectra show a large number of dimeric products are also formed. Both direct scavenging evidence using formic acid and indirect evidence from double bond equivalency factors suggest the dominant oligomerisation mechanism is the bimolecular reaction of stabilised Criegee intermediates (SCIs) with non-radical ozonolysis products. Saturation vapour concentration estimates suggest monomeric species cannot explain the rapid nucleation burst of fresh aerosol observed in chamber experiments; hence, dimeric species are believed to be responsible for new particle formation, with detected first-and second-generation products driving further particle growth in the system. Ultimately, identification of the major constituents and formation pathways of alpha-phellandrene SOA leads to a greater understanding of the atmospheric processes and implications of monoterpene emissions and SCIs, especially around eucalypt forests where alpha-phellandrene is primarily emitted. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000429370500002 |
WOS关键词 | GAS-PHASE OZONOLYSIS ; PURE COMPONENT PROPERTIES ; TROPOSPHERIC CHEMISTRY ; THERMODYNAMIC MODEL ; PARTICULATE MATTER ; BIOGENIC EMISSIONS ; OLIGOMER FORMATION ; HIGH-RESOLUTION ; AIR-POLLUTION ; WATER-VAPOR |
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/18385 |
专题 | 地球科学 |
作者单位 | 1.Univ Western Australia, Sch Mol Sci, Crawley, WA 6009, Australia; 2.Univ York, Wolfson Atmospher Chem Labs, Dept Chem, York YO10 5DD, N Yorkshire, England; 3.Univ York, Natl Ctr Atmospher Sci, York YO10 5DD, N Yorkshire, England; 4.Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China; 5.Chinese Acad Sci, Guangdong Key Lab Environm Protect & Resources Ut, Guangzhou Inst Geochem, Guangzhou 510640, Guangdong, Peoples R China; 6.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China |
推荐引用方式 GB/T 7714 | Mackenzie-Rae, Felix A.,Wallis, Helen J.,Rickard, Andrew R.,et al. Ozonolysis of alpha-phellandrene - Part 2: Compositional analysis of secondary organic aerosol highlights the role of stabilised Criegee intermediates[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(7):4673-4693. |
APA | Mackenzie-Rae, Felix A..,Wallis, Helen J..,Rickard, Andrew R..,Pereira, Kelly L..,Saunders, Sandra M..,...&Hamilton, Jacqueline F..(2018).Ozonolysis of alpha-phellandrene - Part 2: Compositional analysis of secondary organic aerosol highlights the role of stabilised Criegee intermediates.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(7),4673-4693. |
MLA | Mackenzie-Rae, Felix A.,et al."Ozonolysis of alpha-phellandrene - Part 2: Compositional analysis of secondary organic aerosol highlights the role of stabilised Criegee intermediates".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.7(2018):4673-4693. |
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