Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016GL071240 |
UV photochemistry of carboxylic acids at the air-sea boundary: A relevant source of glyoxal and other oxygenated VOC in the marine atmosphere | |
Chiu, R.1,2; Tinel, L.3; Gonzalez, L.1,2; Ciuraru, R.3,4; Bernard, F.3,5; George, C.3; Volkamer, R.1,2 | |
2017-01-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; France |
英文摘要 | Photochemistry plays an important role in marine dissolved organic carbon (DOC) degradation, but the mechanisms that convert DOC into volatile organic compounds (VOCs) remain poorly understood. We irradiated carboxylic acids (C-7-C-9) on a simulated ocean surface with UV light (<320nm) in a photochemical flow reactor and transferred the VOC products into a dark ozone reactor. Glyoxal was detected as a secondary product from heptanoic, octanoic, and nonanoic acid (NA) films, but not from octanol. Primary glyoxal emissions were not observed, nor was glyoxal formed in the absence of ozone. Addition of a photosensitizer had no noticeable effect. The concurrent detection of heptanal in the NA system suggests that the ozonolysis of 2-nonenal is the primary chemical mechanism that produces glyoxal. This source can potentially sustain tens ofparts per trillion by volume (pptv) glyoxal over oceans, and helps to explain why glyoxal fluxes in marine air are directed from the atmosphere into the ocean. |
英文关键词 | sea surface microlayer carboxylic acids photochemistry dissolved organic carbon marine OVOC glyoxal |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000395652600056 |
WOS关键词 | VOLATILE ORGANIC-COMPOUNDS ; MASTER CHEMICAL MECHANISM ; CE-DOAS INSTRUMENT ; MCM V3 PART ; AEROSOL EXTINCTION ; CARBONYL-COMPOUNDS ; GAS-PHASE ; IN-SITU ; TROPOSPHERIC DEGRADATION ; WATER-INTERFACE |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/25725 |
专题 | 气候变化 |
作者单位 | 1.Univ Colorado, Dept Chem & Biochem, Campus Box 215, Boulder, CO 80309 USA; 2.Univ Colorado, CIRES, Boulder, CO 80309 USA; 3.Univ Claude Bernard Lyon 1, Univ Lyon, CNRS, IRCELYON, Villeurbanne, France; 4.Univ Paris Saclay, INRA, AgroParisTech, UMR ECOSYS, Thiverval Grignon, France; 5.NOAA, Div Chem Sci, Earth Syst Res Lab, Boulder, CO USA |
推荐引用方式 GB/T 7714 | Chiu, R.,Tinel, L.,Gonzalez, L.,et al. UV photochemistry of carboxylic acids at the air-sea boundary: A relevant source of glyoxal and other oxygenated VOC in the marine atmosphere[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(2). |
APA | Chiu, R..,Tinel, L..,Gonzalez, L..,Ciuraru, R..,Bernard, F..,...&Volkamer, R..(2017).UV photochemistry of carboxylic acids at the air-sea boundary: A relevant source of glyoxal and other oxygenated VOC in the marine atmosphere.GEOPHYSICAL RESEARCH LETTERS,44(2). |
MLA | Chiu, R.,et al."UV photochemistry of carboxylic acids at the air-sea boundary: A relevant source of glyoxal and other oxygenated VOC in the marine atmosphere".GEOPHYSICAL RESEARCH LETTERS 44.2(2017). |
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