globalchange  > 影响、适应和脆弱性
DOI: 10.1002/jgrd.50653
论文题名:
N<inf>2</inf>O<inf>5</inf> uptake coefficients and nocturnal NO<inf>2</inf> removal rates determined from ambient wintertime measurements
作者: Wagner N.L.; Riedel T.P.; Young C.J.; Bahreini R.; Brock C.A.; Dubé W.P.; Kim S.; Middlebrook A.M.; Öztürk F.; Roberts J.M.; Russo R.; Sive B.; Swarthout R.; Thornton J.A.; VandenBoer T.C.; Zhou Y.; Brown S.S.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期:16
起始页码: 9331
结束页码: 9350
语种: 英语
Scopus关键词: Aerosols ; Chemical analysis ; Hydrolysis ; Aerosol nitrates ; Agricultural activities ; Ambient measurement ; Laboratory studies ; Nitrate radicals ; Uptake coefficients ; Urban pollutions ; Winter conditions ; Nitrogen oxides ; agricultural emission ; atmospheric pollution ; biological uptake ; concentration (composition) ; hydrolysis ; laboratory method ; nitrous oxide ; pollutant removal ; urban pollution ; Colorado ; United States ; Weld County
英文摘要: Heterogeneous N2O5 uptake onto aerosol is the primary nocturnal path for removal of NOx (= NO+NO2) from the atmosphere and can also result in halogen activation through production of ClNO2. The N2O5 uptake coefficient has been the subject of numerous laboratory studies; however, only a few studies have determined the uptake coefficient from ambient measurements, and none has been focused on winter conditions, when the portion of NOx removed by N2O5 uptake is the largest. In this work, N 2O5 uptake coefficients are determined from ambient wintertime measurements of N2O5 and related species at the Boulder Atmospheric Observatory in Weld County, CO, a location that is highly impacted by urban pollution from Denver, as well as emissions from agricultural activities and oil and gas extraction. A box model is used to analyze the nocturnal nitrate radical chemistry and predict the N2O5 concentration. The uptake coefficient in the model is iterated until the predicted N2O5 concentration matches the measured concentration. The results suggest that during winter, the most important influence that might suppress N2O5 uptake is aerosol nitrate but that this effect does not suppress uptake coefficients enough to limit the rate of NOx loss through N2O5 hydrolysis. N2O5 hydrolysis was found to dominate the nocturnal chemistry during this study consuming ~80% of nocturnal gas phase nitrate radical production. Typically, less than 15% of the total nitrate radical production remained in the form of nocturnal species at sunrise when they are photolyzed and reform NO2. © 2013. Her Majesty the Queen in Right of Canada. American Geophysical Union.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63410
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

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作者单位: NOAA Earth System Research Laboratory, 325 Broadway, Boulder, CO 80305, United States; Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States; Department of Atmospheric Sciences, University of Washington, Seattle, WA, United States; Department of Chemistry, University of Washington, Seattle, WA, United States; Department of Chemistry, Memorial University of Newfoundland, St. John's, NL, Canada; Department of Environmental Sciences, University of California Riverside, Riverside, CA, United States; Department of Earth System Science, School of Physical Sciences, University of California, Irvine, CA, United States; Environmental Engineering Department, Abant Izzet Baysal University, Bolu, Turkey; Department of Chemistry, Appalachian State University, Boone, NC, United States; Earth Systems Research Center, University of New Hampshire, Durham, NH, United States

Recommended Citation:
Wagner N.L.,Riedel T.P.,Young C.J.,et al. N<inf>2</inf>O<inf>5</inf> uptake coefficients and nocturnal NO<inf>2</inf> removal rates determined from ambient wintertime measurements[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(16)
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