Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-20-267-2020 |
The changing role of organic nitrates in the removal and transport of NOx | |
Present, Paul S. Romer1; Zare, Azimeh1; Cohen, Ronald C.1,2 | |
2020-01-07 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2020 |
卷号 | 20期号:1页码:267-279 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | A better understanding of the chemistry of nitrogen oxides (NOx) is crucial to effectively reducing air pollution and predicting future air quality. The response of NOx lifetime to perturbations in emissions or in the climate system is set in large part by whether NOx loss occurs primarily by the direct formation of HNO3 or through the formation of alkyl and multifunctional nitrates (RONO2). Using 15 years of detailed in situ observations, we show that in the summer daytime continental boundary layer the relative importance of these two pathways can be well approximated by the relative likelihood that OH will react with NO2 or instead with a volatile organic compound (VOC). Over the past decades, changes in anthropogenic emissions of both NOx and VOCs have led to a significant increase in the overall importance of RONO2 chemistry to NOx loss. We find that this shift is associated with a decreased effectiveness of NOx emissions reductions on ozone production in polluted areas and increased transport of NOx from source to receptor regions. This change in chemistry, combined with changes in the spatial pattern of NOx emissions, is observed to be leading to a flatter distribution of NO2 across the United States, potentially transforming ozone air pollution from a local issue into a regional one. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000506010700001 |
WOS关键词 | SOUTHEASTERN UNITED-STATES ; NITROGEN-OXIDES ; TEMPERATURE-DEPENDENCE ; UINTAH BASIN ; OZONE ; ISOPRENE ; CHEMISTRY ; LIFETIME ; AEROSOL ; DEGRADATION |
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/278541 |
专题 | 地球科学 |
作者单位 | 1.Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA; 2.Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA |
推荐引用方式 GB/T 7714 | Present, Paul S. Romer,Zare, Azimeh,Cohen, Ronald C.. The changing role of organic nitrates in the removal and transport of NOx[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(1):267-279. |
APA | Present, Paul S. Romer,Zare, Azimeh,&Cohen, Ronald C..(2020).The changing role of organic nitrates in the removal and transport of NOx.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(1),267-279. |
MLA | Present, Paul S. Romer,et al."The changing role of organic nitrates in the removal and transport of NOx".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.1(2020):267-279. |
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