Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-3453-2017 |
Formation of highly oxygenated low-volatility products from cresol oxidation | |
Schwantes, Rebecca H.1,4; Schilling, Katherine A.2,5; McVay, Renee C.2,6,7; Lignell, Hanna2,8; Coggon, Matthew M.2,6,7; Zhang, Xuan1,4; Wennberg, Paul O.1,3; Seinfeld, John H.2,3 | |
2017-03-10 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:5 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Hydroxyl radical (OH) oxidation of toluene produces ring-retaining products: cresol and benzaldehyde, and ring-opening products: bicyclic intermediate compounds and epoxides. Here, first- and later-generation OH oxidation products from cresol and benzaldehyde are identified in laboratory chamber experiments. For benzaldehyde, first- generation ring-retaining products are identified, but later-eneration products are not detected. For cresol, low-volatility (saturation mass concentration, C * similar to 3.5 x 10(4) -7.7 x 10(-3) mu gm(-3)), first- and later-generation ring-retaining products are identified. Subsequent OH addition to the aromatic ring of o-cresol leads to compounds such as hydroxy, dihydroxy, and trihydroxy methyl benzoquinones and dihydroxy, trihydroxy, tetrahydroxy, and pentahydroxy toluenes. These products are detected in the gas phase by chemical ionization mass spectrometry (CIMS) and in the particle phase using offline direct analysis in real-time mass spectrometry (DART-MS). Our data suggest that the yield of trihydroxy toluene from dihydroxy toluene is substantial. While an exact yield cannot be reported as authentic standards are unavailable, we find that a yield for trihydroxy toluene from dihydroxy toluene of similar to 0.7 (equal to the reported yield of dihydroxy toluene from o-cresol (Olariu et al., idation under low-NO conditions. These results suggest that even though the cresol pathway accounts for only similar to 20% of the oxidation products of toluene, it is the source of a significant fraction (similar to 20-40 %) of toluene secondary organic aerosol (SOA) due to the formation of low- volatility products. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000397475500002 |
WOS关键词 | ORGANIC AEROSOL FORMATION ; ABSORPTION CROSS-SECTIONS ; PURE COMPONENT PROPERTIES ; GAS-PHASE REACTION ; ATMOSPHERIC OXIDATION ; VAPOR-PRESSURE ; NO3 RADICALS ; AROMATIC-HYDROCARBONS ; M-XYLENE ; CHEMICAL MECHANISM |
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/24936 |
专题 | 地球科学 |
作者单位 | 1.CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA; 2.CALTECH, Div Chem & Chem Engn, Pasadena, CA 91125 USA; 3.CALTECH, Div Engn & Appl Sci, Pasadena, CA 91125 USA; 4.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA; 5.US Army Criminal Invest Lab, Chem & Firearms Branch, Forest Pk, GA USA; 6.Cooperat Inst Res Environm Sci, Boulder, CO USA; 7.NOAA, Boulder, CO USA; 8.South Coast Air Qual Management Dist, Diamond Bar, CA USA |
推荐引用方式 GB/T 7714 | Schwantes, Rebecca H.,Schilling, Katherine A.,McVay, Renee C.,et al. Formation of highly oxygenated low-volatility products from cresol oxidation[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(5). |
APA | Schwantes, Rebecca H..,Schilling, Katherine A..,McVay, Renee C..,Lignell, Hanna.,Coggon, Matthew M..,...&Seinfeld, John H..(2017).Formation of highly oxygenated low-volatility products from cresol oxidation.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(5). |
MLA | Schwantes, Rebecca H.,et al."Formation of highly oxygenated low-volatility products from cresol oxidation".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.5(2017). |
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