Variability in Nocturnal Nitrogen Oxide Processing and Its Role in Regional Air Quality-Reference-Cited by-同舟云学术

Variability in Nocturnal Nitrogen Oxide Processing and Its Role in Regional Air Quality

Published:2006-01-06 Issue:5757 Volume:311 Page:67-70
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Brown S. S.¹²³⁴,Ryerson T. B.¹²³⁴,Wollny A. G.¹²³⁴,Brock C. A.¹²³⁴,Peltier R.¹²³⁴,Sullivan A. P.¹²³⁴,Weber R. J.¹²³⁴,Dubé W. P.¹²³⁴,Trainer M.¹²³⁴,Meagher J. F.¹²³⁴,Fehsenfeld F. C.¹²³⁴,Ravishankara A. R.¹²³⁴

Affiliation:

1. National Oceanic and Atmospheric Administration (NOAA) Earth System Research Laboratory, R/CSD2, 325 Broadway, Boulder, CO 80305, USA.

2. Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80309, USA.

3. School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA.

4. Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO 80309, USA.

Abstract

Nitrogen oxides in the lower troposphere catalyze the photochemical production of ozone (O 3 ) pollution during the day but react to form nitric acid, oxidize hydrocarbons, and remove O 3 at night. A key nocturnal reaction is the heterogeneous hydrolysis of dinitrogen pentoxide, N 2 O 5 . We report aircraft measurements of NO 3 and N 2 O 5 , which show that the N 2 O 5 uptake coefficient, g(N 2 O 5 ), on aerosol particles is highly variable and depends strongly on aerosol composition, particularly sulfate content. The results have implications for the quantification of regional-scale O 3 production and suggest a stronger interaction between anthropogenic sulfur and nitrogen oxide emissions than previously recognized.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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