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An Atmospheric Constraint on the NO2 Dependence of Daytime Near-Surface Nitrous Acid (HONO).
Pusede, Sally E; VandenBoer, Trevor C; Murphy, Jennifer G; Markovic, Milos Z; Young, Cora J; Veres, Patrick R; Roberts, James M; Washenfelder, Rebecca A; Brown, Steven S; Ren, Xinrong; Tsai, Catalina; Stutz, Jochen; Brune, William H; Browne, Eleanor C; Wooldridge, Paul J; Graham, Ashley R; Weber, Robin; Goldstein, Allen H; Dusanter, Sebastien; Griffith, Stephen M; Stevens, Philip S; Lefer, Barry L; Cohen, Ronald C.
Affiliation
  • Pusede SE; Department of Chemistry, University of California, Berkeley , Berkeley, California 94720, United States.
  • VandenBoer TC; Department of Chemistry, University of Toronto , Toronto, Ontario M5S 3H6, Canada.
  • Murphy JG; Department of Chemistry, University of Toronto , Toronto, Ontario M5S 3H6, Canada.
  • Markovic MZ; Department of Chemistry, University of Toronto , Toronto, Ontario M5S 3H6, Canada.
  • Young CJ; Earth Systems Research Laboratory, Chemical Sciences Division, National Oceanic and Atmospheric Administration (NOAA) , Boulder, Colorado 80305, United States.
  • Veres PR; Cooperative Institute for Research in Environmental Science, University of Colorado Boulder , Boulder, Colorado 80309, United States.
  • Roberts JM; Earth Systems Research Laboratory, Chemical Sciences Division, National Oceanic and Atmospheric Administration (NOAA) , Boulder, Colorado 80305, United States.
  • Washenfelder RA; Cooperative Institute for Research in Environmental Science, University of Colorado Boulder , Boulder, Colorado 80309, United States.
  • Brown SS; Earth Systems Research Laboratory, Chemical Sciences Division, National Oceanic and Atmospheric Administration (NOAA) , Boulder, Colorado 80305, United States.
  • Ren X; Earth Systems Research Laboratory, Chemical Sciences Division, National Oceanic and Atmospheric Administration (NOAA) , Boulder, Colorado 80305, United States.
  • Tsai C; Cooperative Institute for Research in Environmental Science, University of Colorado Boulder , Boulder, Colorado 80309, United States.
  • Stutz J; Earth Systems Research Laboratory, Chemical Sciences Division, National Oceanic and Atmospheric Administration (NOAA) , Boulder, Colorado 80305, United States.
  • Brune WH; Department of Chemistry and Biochemistry, University of Colorado Boulder , Boulder, Colorado 80309, United States.
  • Browne EC; Air Resources Laboratory, National Oceanic and Atmospheric Administration , College Park, Maryland 20740, United States.
  • Wooldridge PJ; Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles , Los Angeles, California 90095, United States.
  • Graham AR; Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles , Los Angeles, California 90095, United States.
  • Weber R; Department of Meteorology, Pennsylvania State University , University Park, Pennsylvania 16802, United States.
  • Goldstein AH; Department of Chemistry, University of California, Berkeley , Berkeley, California 94720, United States.
  • Dusanter S; Department of Chemistry, University of California, Berkeley , Berkeley, California 94720, United States.
  • Griffith SM; Department of Chemistry, University of California, Berkeley , Berkeley, California 94720, United States.
  • Stevens PS; Department of Environmental Science, Policy, and Management, University of California, Berkeley , Berkeley, California 94720, United States.
  • Lefer BL; Department of Environmental Science, Policy, and Management, University of California, Berkeley , Berkeley, California 94720, United States.
  • Cohen RC; Department of Civil and Environmental Engineering, University of California, Berkeley , Berkeley, California 94720, United States.
Environ Sci Technol ; 49(21): 12774-81, 2015 Nov 03.
Article in En | MEDLINE | ID: mdl-26436410
ABSTRACT
Recent observations suggest a large and unknown daytime source of nitrous acid (HONO) to the atmosphere. Multiple mechanisms have been proposed, many of which involve chemistry that reduces nitrogen dioxide (NO2) on some time scale. To examine the NO2 dependence of the daytime HONO source, we compare weekday and weekend measurements of NO2 and HONO in two U.S. cities. We find that daytime HONO does not increase proportionally to increases in same-day NO2, i.e., the local NO2 concentration at that time and several hours earlier. We discuss various published HONO formation pathways in the context of this constraint.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Atmosphere / Nitrogen Dioxide / Nitrous Acid Country/Region as subject: America do norte Language: En Journal: Environ Sci Technol Year: 2015 Document type: Article Affiliation country: United States
Fulltext
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Atmosphere / Nitrogen Dioxide / Nitrous Acid Country/Region as subject: America do norte Language: En Journal: Environ Sci Technol Year: 2015 Document type: Article Affiliation country: United States