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Proc Natl Acad Sci U S A

Title:		Highly functionalized organic nitrates in the southeast United States: Contribution to secondary organic aerosol and reactive nitrogen budgets
Author(s):		Lee BH; Mohr C; Lopez-Hilfiker FD; Lutz A; Hallquist M; Lee L; Romer P; Cohen RC; Iyer S; Kurten T; Hu W; Day DA; Campuzano-Jost P; Jimenez JL; Xu L; Ng NL; Guo H; Weber RJ; Wild RJ; Brown SS; Koss A; de Gouw J; Olson K; Goldstein AH; Seco R; Kim S; McAvey K; Shepson PB; Starn T; Baumann K; Edgerton ES; Liu J; Shilling JE; Miller DO; Brune W; Schobesberger S; D'Ambro EL; Thornton JA;
Address:		"Department of Atmospheric Sciences, University of Washington, Seattle, WA 98195; Department of Chemistry and Molecular Biology, Atmospheric Science, University of Gothenburg, SE-41296 Gothenburg, Sweden; Department of Chemistry, University of California, Berkeley, CA 94720; Department of Chemistry, Laboratory of Physical Chemistry, University of Helsinki, Helsinki FIN-00014, Finland; Department of Chemistry and Biochemistry, University of Colorado Boulder, Boulder, CO 80309; Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO 80309; School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332; School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332; School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332; School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332; Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO 80309; Chemical Sciences Division, National Oceanic and Atmospheric Administration, Boulder, CO 80305; Chemical Sciences Division, National Oceanic and Atmospheric Administration, Boulder, CO 80305; Department of Environmental Science, Policy and Management, University of California, Berkeley, CA 94720; Department of Earth System Science, School of Physical Sciences, University of California, Irvine, CA 92697; Departments of Chemistry and Earth, Atmospheric and Planetary Sciences and Purdue Climate Change Research Center, Purdue University, West Lafayette, IN 47907; Department of Chemistry, West Chester University, West Chester, PA 19383; Atmospheric Research and Analysis, Inc., Cary, NC 27513; Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA 99352; Department of Meteorology, Pennsylvania State University, University Park, PA 16802; Department of Chemistry, University of Washington, Seattle, WA 98195. Department of Atmospheric Sciences, University of Washington, Seattle, WA 98195; thornton@atmos.washington.edu"
Journal Title:		Proc Natl Acad Sci U S A
Year:		2016
Volume:		20160125
Issue:		6
Page Number:		1516 - 1521
DOI:		10.1073/pnas.1508108113
ISSN/ISBN:		1091-6490 (Electronic) 0027-8424 (Print) 0027-8424 (Linking)
Abstract:		"Speciated particle-phase organic nitrates (pONs) were quantified using online chemical ionization MS during June and July of 2013 in rural Alabama as part of the Southern Oxidant and Aerosol Study. A large fraction of pONs is highly functionalized, possessing between six and eight oxygen atoms within each carbon number group, and is not the common first generation alkyl nitrates previously reported. Using calibrations for isoprene hydroxynitrates and the measured molecular compositions, we estimate that pONs account for 3% and 8% of total submicrometer organic aerosol mass, on average, during the day and night, respectively. Each of the isoprene- and monoterpenes-derived groups exhibited a strong diel trend consistent with the emission patterns of likely biogenic hydrocarbon precursors. An observationally constrained diel box model can replicate the observed pON assuming that pONs (i) are produced in the gas phase and rapidly establish gas-particle equilibrium and (ii) have a short particle-phase lifetime ( approximately 2-4 h). Such dynamic behavior has significant implications for the production and phase partitioning of pONs, organic aerosol mass, and reactive nitrogen speciation in a forested environment"
Keywords:		biogenic volatile organic compound oxidation high-resolution time-of-flight chemical ionization mass spectrometer lifetime calculation online measurement particulate organic nitrates;
Notes:		"PubMed-not-MEDLINELee, Ben H Mohr, Claudia Lopez-Hilfiker, Felipe D Lutz, Anna Hallquist, Mattias Lee, Lance Romer, Paul Cohen, Ronald C Iyer, Siddharth Kurten, Theo Hu, Weiwei Day, Douglas A Campuzano-Jost, Pedro Jimenez, Jose L Xu, Lu Ng, Nga Lee Guo, Hongyu Weber, Rodney J Wild, Robert J Brown, Steven S Koss, Abigail de Gouw, Joost Olson, Kevin Goldstein, Allen H Seco, Roger Kim, Saewung McAvey, Kevin Shepson, Paul B Starn, Tim Baumann, Karsten Edgerton, Eric S Liu, Jiumeng Shilling, John E Miller, David O Brune, William Schobesberger, Siegfried D'Ambro, Emma L Thornton, Joel A eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. 2016/01/27 Proc Natl Acad Sci U S A. 2016 Feb 9; 113(6):1516-21. doi: 10.1073/pnas.1508108113. Epub 2016 Jan 25"