Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-5799-2018 |
Organic aerosol in the summertime southeastern United States: components and their link to volatility distribution, oxidation state and hygroscopicity | |
Kostenidou, Evangelia1,2; Karnezi, Eleni3; Hite, James R., Jr.4; Bougiatioti, Aikaterini4,6; Cerully, Kate5,7; Xu, Lu5,8; Ng, Nga L.4,5; Nenes, Athanasios1,4,5,6; Pandis, Spyros N.1,2,3 | |
2018-04-26 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
![]() |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:8页码:5799-5819 |
文章类型 | Article |
语种 | 英语 |
国家 | Greece; USA |
英文摘要 | The volatility distribution of the organic aerosol (OA) and its sources during the Southern Oxidant and Aerosol Study (SOAS; Centreville, Alabama) was constrained using measurements from an Aerodyne high-resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS) and a thermodenuder (TD). Positive matrix factorization (PMF) analysis was applied on both the ambient and thermodenuded high-resolution mass spectra, leading to four factors: more oxidized oxygenated OA (MO-OOA), less oxidized oxygenated OA (LO-OOA), an isoprene epoxydiol (IEPOX)-related factor (isoprene-OA) and biomass burning OA (BBOA). BBOA had the highest mass fraction remaining (MFR) at 100 degrees C, followed by the isoprene-OA, and the LO-OOA. Surprisingly the MO-OOA evaporated the most in the TD. The estimated effective vaporization enthalpies assuming an evaporation coefficient equal to unity were 58 +/- 13 kJ mol(-1) for the LO-OOA, 89 +/- 10 kJ mol(-1) for the MO-OOA, 55 +/- 11 kJ mol(-1) for the BBOA, and 63 +/- 15 kJ mol(-1) for the isoprene-OA. The estimated volatility distribution of all factors covered a wide range including both semi-volatile and low-volatility components. BBOA had the lowest average volatility of all factors, even though it had the lowest O : C ratio among all factors. LO-OOA was the more volatile factor and its high MFR was due to its low enthalpy of vaporization according to the model. The isoprene-OA factor had intermediate volatility, quite higher than suggested by a few other studies. The analysis suggests that deducing the volatility of a factor only from its MFR could lead to erroneous conclusions. The oxygen content of the factors can be combined with their estimated volatility and hygroscopicity to provide a better view of their physical properties. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000430947500001 |
WOS关键词 | POSITIVE MATRIX FACTORIZATION ; EQUILIBRATION TIME SCALES ; HIGH-RESOLUTION ; CCN ACTIVITY ; MASS-SPECTROMETRY ; CHEMICAL-CHARACTERIZATION ; SOURCE APPORTIONMENT ; SATURATION PRESSURE ; ISOPRENE-EPOXYDIOLS ; SECONDARY |
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/20580 |
专题 | 地球科学 |
作者单位 | 1.Fdn Res & Technol Hellas, Inst Chem Engn Sci, Patras, Greece; 2.Univ Patras, Dept Chem Engn, Patras, Greece; 3.Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA; 4.Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA; 5.Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA; 6.Natl Observ Athens, Inst Environm Res & Sustainable Dev, Palea Penteli, Greece; 7.TSI Inc, Shoreview, MN USA; 8.CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA |
推荐引用方式 GB/T 7714 | Kostenidou, Evangelia,Karnezi, Eleni,Hite, James R., Jr.,et al. Organic aerosol in the summertime southeastern United States: components and their link to volatility distribution, oxidation state and hygroscopicity[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(8):5799-5819. |
APA | Kostenidou, Evangelia.,Karnezi, Eleni.,Hite, James R., Jr..,Bougiatioti, Aikaterini.,Cerully, Kate.,...&Pandis, Spyros N..(2018).Organic aerosol in the summertime southeastern United States: components and their link to volatility distribution, oxidation state and hygroscopicity.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(8),5799-5819. |
MLA | Kostenidou, Evangelia,et al."Organic aerosol in the summertime southeastern United States: components and their link to volatility distribution, oxidation state and hygroscopicity".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.8(2018):5799-5819. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论