| Title: | Secondary organic aerosol formation and organic nitrate yield from NO3 oxidation of biogenic hydrocarbons |
| Author(s): | Fry JL; Draper DC; Barsanti KC; Smith JN; Ortega J; Winkler PM; Lawler MJ; Brown SS; Edwards PM; Cohen RC; Lee L; |
| Address: | "Chemistry Department, Reed College , Portland, Oregon 97202-8199, United States" |
| ISSN/ISBN: | 1520-5851 (Electronic) 0013-936X (Print) 0013-936X (Linking) |
| Abstract: | "The secondary organic aerosol (SOA) mass yields from NO3 oxidation of a series of biogenic volatile organic compounds (BVOCs), consisting of five monoterpenes and one sesquiterpene (alpha-pinene, beta-pinene, Delta-3-carene, limonene, sabinene, and beta-caryophyllene), were investigated in a series of continuous flow experiments in a 10 m(3) indoor Teflon chamber. By making in situ measurements of the nitrate radical and employing a kinetics box model, we generate time-dependent yield curves as a function of reacted BVOC. SOA yields varied dramatically among the different BVOCs, from zero for alpha-pinene to 38-65% for Delta-3-carene and 86% for beta-caryophyllene at mass loading of 10 mug m(-3), suggesting that model mechanisms that treat all NO3 + monoterpene reactions equally will lead to errors in predicted SOA depending on each location's mix of BVOC emissions. In most cases, organonitrate is a dominant component of the aerosol produced, but in the case of alpha-pinene, little organonitrate and no aerosol is formed" |
| Keywords: | Aerosols/*chemistry Air Pollutants/analysis/chemistry Bicyclic Monoterpenes Bridged Bicyclo Compounds/chemistry Cyclohexenes/chemistry Kinetics Limonene Monoterpenes/chemistry Nitrates/*chemistry Polycyclic Sesquiterpenes Sesquiterpenes/chemistry Terpenes; |
| Notes: | "MedlineFry, Juliane L Draper, Danielle C Barsanti, Kelley C Smith, James N Ortega, John Winkler, Paul M Lawler, Michael J Brown, Steven S Edwards, Peter M Cohen, Ronald C Lee, Lance eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. 2014/09/18 Environ Sci Technol. 2014 Oct 21; 48(20):11944-53. doi: 10.1021/es502204x. Epub 2014 Oct 8" |
