Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-15451-2018 |
Primary emissions of glyoxal and methylglyoxal from laboratory measurements of open biomass burning | |
Zarzana, Kyle J.1,2,4; Selimovic, Vanessa3; Koss, Abigail R.1,2,4,6; Sekimoto, Kanako1,2,5; Coggon, Matthew M.1,2; Yuan, Bin1,2,7; Dube, William P.1,2; Yokelson, Robert J.3; Warneke, Carsten1,2; de Gouw, Joost A.1,2,4; Roberts, James M.1; Brown, Steven S.1,4 | |
2018-10-26 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:20页码:15451-15470 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Japan; Peoples R China |
英文摘要 | We report the emissions of glyoxal and methylglyoxal from the open burning of biomass during the NOAA-led 2016 FIREX intensive at the Fire Sciences Laboratory in Missoula, MT. Both compounds were measured using cavity-enhanced spectroscopy, which is both more sensitive and more selective than methods previously used to determine emissions of these two compounds. A total of 75 burns were conducted, using 33 different fuels in 8 different categories, providing a far more comprehensive dataset for emissions than was previously available. Measurements of methylglyoxal using our instrument suffer from spectral interferences from several other species, and the values reported here are likely underestimates, possibly by as much as 70 %. Methylglyoxal emissions were 2-3 times higher than glyoxal emissions on a molar basis, in contrast to previous studies that report methylglyoxal emissions lower than glyoxal emissions. Methylglyoxal emission ratios for all fuels averaged 3.6 +/- 2.4 ppbv methylglyoxal (ppmv CO)(-1), while emission factors averaged 0.66 +/- 0.50 g methylglyoxal (kg fuel burned) 1. Primary emissions of glyoxal from biomass burning were much lower than previous laboratory measurements but consistent with recent measurements from aircraft. Glyoxal emission ratios for all fuels averaged 1.4 +/- 0.7 ppbv glyoxal (ppmv CO)(-1), while emission factors averaged 0.20 +/- 0.12 g glyoxal (kg fuel burned)(-1), values that are at least a factor of 4 lower than assumed in previous estimates of the global glyoxal budget. While there was significant variability in the glyoxal emission ratios and factors between the different fuel groups, glyoxal and formaldehyde were highly correlated during the course of any given fire, and the ratio of glyoxal to formaldehyde, R-GF, was consistent across many different fuel types, with an average value of 0.068 +/- 0.018. While R-GF values for fresh emissions were consistent across many fuel types, further work is required to determine how this value changes as the emissions age. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000448475400006 |
WOS关键词 | VOLATILE ORGANIC-COMPOUNDS ; ABSORPTION CROSS-SECTION ; TRANSFER-REACTION-TIME ; REACTIVE TRACE GASES ; NITROGEN-DIOXIDE ; ISOPRENE OXIDATION ; METHYL GLYOXAL ; FINE-PARTICLE ; COOKING FIRES ; PTR-TOF |
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/28373 |
专题 | 地球科学 |
作者单位 | 1.NOAA, ESRL, Div Chem Sci, Boulder, CO 80305 USA; 2.Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA; 3.Univ Montana, Dept Chem & Biochem, Missoula, MT 59812 USA; 4.Univ Colorado, Dept Chem & Biochem, Campus Box 215, Boulder, CO 80309 USA; 5.Yokohama City Univ, Grad Sch Nanobiosci, Yokohama, Kanagawa 2360027, Japan; 6.MIT, Dept Civil & Environm Engn, Cambridge, MA 02142 USA; 7.Jinan Univ, Inst Environm & Climate Res, Guangzhou 510632, Guangdong, Peoples R China |
推荐引用方式 GB/T 7714 | Zarzana, Kyle J.,Selimovic, Vanessa,Koss, Abigail R.,et al. Primary emissions of glyoxal and methylglyoxal from laboratory measurements of open biomass burning[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(20):15451-15470. |
APA | Zarzana, Kyle J..,Selimovic, Vanessa.,Koss, Abigail R..,Sekimoto, Kanako.,Coggon, Matthew M..,...&Brown, Steven S..(2018).Primary emissions of glyoxal and methylglyoxal from laboratory measurements of open biomass burning.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(20),15451-15470. |
MLA | Zarzana, Kyle J.,et al."Primary emissions of glyoxal and methylglyoxal from laboratory measurements of open biomass burning".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.20(2018):15451-15470. |
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