Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1073/pnas.1714715115 |
Urban flux measurements reveal a large pool of oxygenated volatile organic compound emissions | |
Karl, T.1; Striednig, M.1; Graus, M.1; Hammerle, A.2; Wohlfahrt, G.2 | |
2018-02-06 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
ISSN | 0027-8424 |
出版年 | 2018 |
卷号 | 115期号:6页码:1186-1191 |
文章类型 | Article |
语种 | 英语 |
国家 | Austria |
英文摘要 | Atmospheric chemistry is fueled by a large annual influx of non-methane volatile organic compounds (NMVOC). These compounds influence ozone formation, lead to secondary organic aerosol production, and play a significant role for the oxidizing capacity of the atmosphere. The anthropogenic NMVOC budget is considerably uncertain due to the diversity of urban emission sources. Here, we present comprehensive observations of urban NMVOC eddy covariance fluxes using a newly designed proton-transfer-reaction quadrupole interface time-of-flight mass spectrometer. We found emission fluxes of a surprisingly large pool of oxygenated NMVOCs (OVOCs) with an appreciable fraction of higher oxidized OVOCs that cannot be explained by known fast photochemical turnaround or current primary emission estimates. Measured OVOC/NMVOC bulk flux ratios are two to four times higher than inferred from aggregated anthropogenic emission inventories. Extrapolating these results would double the global anthropogenic NMVOC flux. In view of globally accelerating urbanization, our study highlights the need to reevaluate the influence of anthropogenic NMVOC on atmospheric chemistry, human health, and the climate system. |
英文关键词 | NMVOC eddy covariance urban emissions air pollution mass spectrometry |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000424191300042 |
WOS关键词 | EDDY COVARIANCE MEASUREMENTS ; OZONE CREATION POTENTIALS ; VOC EMISSIONS ; AIR-QUALITY ; ATMOSPHERE ; GASES ; OH ; DEPOSITION ; OXIDATION ; AEROSOLS |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
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/205044 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Innsbruck, Inst Atmospher & Cryospher Sci, A-6020 Innsbruck, Austria; 2.Univ Innsbruck, Inst Ecol, A-6020 Innsbruck, Austria |
推荐引用方式 GB/T 7714 | Karl, T.,Striednig, M.,Graus, M.,et al. Urban flux measurements reveal a large pool of oxygenated volatile organic compound emissions[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2018,115(6):1186-1191. |
APA | Karl, T.,Striednig, M.,Graus, M.,Hammerle, A.,&Wohlfahrt, G..(2018).Urban flux measurements reveal a large pool of oxygenated volatile organic compound emissions.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,115(6),1186-1191. |
MLA | Karl, T.,et al."Urban flux measurements reveal a large pool of oxygenated volatile organic compound emissions".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 115.6(2018):1186-1191. |
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