Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-11253-2019 |
Chamber-based insights into the factors controlling epoxydiol (IEPOX) secondary organic aerosol (SOA) yield, composition, and volatility | |
D&1; 39;Ambro, Emma L.2 | |
2019-09-05 | |
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:17页码:11253-11265 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Finland; Switzerland; Peoples R China |
英文摘要 | We present measurements utilizing the Filter Inlet for Gases and Aerosols (FIGAERO) applied to chamber measurements of isoprene-derived epoxydiol (IEPOX) reactive uptake to aqueous acidic particles and associated secondary organic aerosol (SOA) formation. Similar to recent field observations with the same instrument, we detect two molecular components desorbing from the IEPOX SOA in high abundance: C5H12O4 and C5H10O3. The thermal desorption signal of the former, presumably 2-methyltetrols, exhibits two distinct maxima, suggesting it arises from at least two different SOA components with significantly different effective volatilities. Isothermal evaporation experiments illustrate that the most abundant component giving rise to C5H12O4 is semi-volatile, undergoing nearly complete evaporation within 1 h while the second, less volatile component remains unperturbed and even increases in abundance. We thus confirm, using controlled laboratory studies, recent analyses of ambient SOA measurements showing that IEPOX SOA is of very low volatility and commonly measured IEPOX SOA tracers such as C5H12O4 and C5H10O3, presumably 2-methyltetrols and C5-alkene triols or 3-MeTHF-3,4-diols, result predominantly from thermal decomposition in the FIGAERO-CIMS. We infer that other measurement techniques using thermal desorption or prolonged heating for analysis of SOA components may also lead to reported 2-methyltetrols and C5-alkene triols or 3-MeTHF-3,4-diol structures. We further show that IEPOX SOA volatility continues to evolve via acidity-enhanced accretion chemistry on the timescale of hours, potentially involving both 2-methyltetrols and organosulfates. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000484490100002 |
WOS关键词 | REACTIVE UPTAKE ; ISOPRENE-EPOXYDIOLS ; MOLECULAR COMPOSITION ; EPOXIDE FORMATION ; RATE CONSTANTS ; PHASE STATE ; GAS ; OXIDATION ; PRODUCTS ; ACIDITY |
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/186935 |
专题 | 地球科学 |
作者单位 | 1.Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA; 2.Univ Washington, Dept Chem, Seattle, WA 98195 USA; 3.Univ Eastern Finland, Dept Appl Phys, Kuopio, Finland; 4.Pacific Northwest Natl Lab, Atmospher Sci & Global Change Div, Richland, WA 99352 USA; 5.Pacific Northwest Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA; 6.Univ Calif Davis, Dept Civil & Environm Engn, Davis, CA 95616 USA; 7.Univ Calif Davis, Atmospher Sci Grad Grp, Davis, CA 95616 USA; 8.Brookhaven Natl Lab, Environm & Climate Sci Dept, Upton, NY 11973 USA; 9.Concordia Univ, Dept Math & Sci, Portland, OR USA; 10.Univ N Carolina, Gillings Sch Global & Publ Hlth, Dept Environm Sci & Engn, Chapel Hill, NC 27515 USA; 11.Univ Helsinki, Dept Chem, Helsinki, Finland; 12.Univ Helsinki, Inst Atmospher & Earth Syst Res INAR, Helsinki, Finland; 13.Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Coral Gables, FL 33124 USA; 14.TofWerk AG, Thun, Switzerland; 15.Harbin Inst Technol, Sch Environm, Harbin, Heilongjiang, Peoples R China; 16.Paul Scherrer Inst, Lab Atmospher Chem, Villigen, Switzerland; 17.Calif Air Resources Board, Sacramento, CA USA; 18.Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA USA; 19.Washington Univ, Ctr Aerosol Sci & Engn, Dept Energy Environm & Chem Engn, St Louis, MO 63110 USA; 20.Univ Colorado, Dept Chem, Boulder, CO 80309 USA; 21.Univ Oulu, Nano & Mol Syst Res Unit, Oulu, Finland |
推荐引用方式 GB/T 7714 | D&,39;Ambro, Emma L.. Chamber-based insights into the factors controlling epoxydiol (IEPOX) secondary organic aerosol (SOA) yield, composition, and volatility[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(17):11253-11265. |
APA | D&,&39;Ambro, Emma L..(2019).Chamber-based insights into the factors controlling epoxydiol (IEPOX) secondary organic aerosol (SOA) yield, composition, and volatility.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(17),11253-11265. |
MLA | D&,et al."Chamber-based insights into the factors controlling epoxydiol (IEPOX) secondary organic aerosol (SOA) yield, composition, and volatility".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.17(2019):11253-11265. |
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